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https://github.com/eried/portapack-mayhem.git
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Adding_WFM_AM_mode_to_Audio_App (#2644)
* Adding_WFM_AM_mode_to_Audio_App * more precise values for cos and sin theta, fix sen_theta to sin_theta * fix sen_theta to sin_theta
This commit is contained in:
Brumi-2021
GitHub
parent
bd781ce37b
commit
4342f5c0ee
18 changed files with 448 additions and 49 deletions
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@ -114,6 +114,26 @@ WFMOptionsView::WFMOptionsView(
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};
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}
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/* WFMAMAptOptionsView *******************************************************/
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WFMAMAptOptionsView::WFMAMAptOptionsView(
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Rect parent_rect,
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const Style* style)
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: View{parent_rect} {
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set_style(style);
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add_children({
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&label_config,
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&options_config,
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});
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freqman_set_bandwidth_option(WFMAM_MODULATION, options_config); // adding the common message from freqman.cpp to the options_config
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options_config.set_by_value(receiver_model.wfmam_configuration());
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options_config.on_change = [this](size_t, OptionsField::value_t n) {
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receiver_model.set_wfmam_configuration(n);
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};
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}
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/* AMFMAptOptionsView *********************************************************/
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AMFMAptOptionsView::AMFMAptOptionsView(
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@ -415,6 +435,12 @@ void AnalogAudioView::on_show_options_modulation() {
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text_ctcss.hidden(true);
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break;
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case ReceiverModel::Mode::WFMAudioAMApt:
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widget = std::make_unique<WFMAMAptOptionsView>(options_view_rect, Theme::getInstance()->option_active);
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waterfall.show_audio_spectrum_view(true);
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text_ctcss.hidden(true);
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break;
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case ReceiverModel::Mode::AMAudioFMApt:
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widget = std::make_unique<AMFMAptOptionsView>(this, options_view_rect, Theme::getInstance()->option_active);
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waterfall.show_audio_spectrum_view(false);
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@ -462,7 +488,10 @@ void AnalogAudioView::update_modulation(ReceiverModel::Mode modulation) {
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case ReceiverModel::Mode::WidebandFMAudio:
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image_tag = portapack::spi_flash::image_tag_wfm_audio;
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break;
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case ReceiverModel::Mode::AMAudioFMApt: // TODO pending to update it.
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case ReceiverModel::Mode::WFMAudioAMApt:
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image_tag = portapack::spi_flash::image_tag_wfm_audio;
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break;
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case ReceiverModel::Mode::AMAudioFMApt:
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image_tag = portapack::spi_flash::image_tag_am_audio;
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break;
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case ReceiverModel::Mode::SpectrumAnalysis:
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@ -501,7 +530,10 @@ void AnalogAudioView::update_modulation(ReceiverModel::Mode modulation) {
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case ReceiverModel::Mode::WidebandFMAudio:
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sampling_rate = 48000;
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break;
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case ReceiverModel::Mode::AMAudioFMApt: // TODO Wefax mode.
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case ReceiverModel::Mode::WFMAudioAMApt:
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sampling_rate = 12000;
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break;
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case ReceiverModel::Mode::AMAudioFMApt:
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sampling_rate = 12000;
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break;
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default:
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@ -74,7 +74,7 @@ class AMFMAptOptionsView : public View {
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OptionsField options_config{
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{3 * 8, 0 * 16},
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6, // Max option length chars
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6, // Max option length chars "USB+FM"
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{
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// Using common messages from freqman_ui.cpp In HF USB , Here we only need USB Audio demod, + post-FM demod fsubcarrier FM tone to get APT signal.
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}};
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@ -132,6 +132,23 @@ class WFMOptionsView : public View {
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}};
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};
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class WFMAMAptOptionsView : public View {
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public:
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WFMAMAptOptionsView(Rect parent_rect, const Style* style);
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private:
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Text label_config{
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{0 * 8, 0 * 16, 2 * 8, 1 * 16},
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"BW",
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};
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OptionsField options_config{
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{3 * 8, 0 * 16},
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10, // Max option char length "FM+AM(DSB)"
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{
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// Using common messages from freqman_ui.cpp
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}};
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};
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class SPECOptionsView : public View {
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public:
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SPECOptionsView(AnalogAudioView* view, Rect parent_rect, const Style* style);
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@ -215,7 +232,7 @@ class AnalogAudioView : public View {
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uint8_t zoom_factor_amfm{0}; // initial zoom factor in AMFM mode
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uint8_t previous_AM_mode_option{0}; // GUI 5 AM modes : (0..4 ) (DSB9K, DSB6K, USB,LSB, CW). Used to select proper FIR filter (0..11) AM mode + offset 0 (zoom+1) or +6 (if zoom+2)
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uint8_t previous_zoom{0}; // GUI ZOOM+1, ZOOM+2 , equivalent to two values offset 0 (zoom+1) or +6 (if zoom+2)
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//
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app_settings::SettingsManager settings_{
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"rx_audio",
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app_settings::Mode::RX,
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@ -261,7 +278,8 @@ class AnalogAudioView : public View {
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{"NFM ", toUType(ReceiverModel::Mode::NarrowbandFMAudio)},
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{"WFM ", toUType(ReceiverModel::Mode::WidebandFMAudio)},
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{"SPEC", toUType(ReceiverModel::Mode::SpectrumAnalysis)},
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{"AMFM", toUType(ReceiverModel::Mode::AMAudioFMApt)} // Added to handle HF WeatherFax , SSB (USB demod) + Tone_Subcarrier FM demod
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{"AMFM", toUType(ReceiverModel::Mode::AMAudioFMApt)}, // Added to handle HF WeatherFax , SSB (USB demod) + Tone_Subcarrier FM demod
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{"FMAM", toUType(ReceiverModel::Mode::WFMAudioAMApt)} // Added to handle SAT NOAA APT
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}};
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AudioVolumeField field_volume{
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@ -45,7 +45,7 @@ using option_db_t = std::pair<std::string_view, int32_t>;
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using options_db_t = std::vector<option_db_t>;
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extern options_db_t freqman_modulations;
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extern options_db_t freqman_bandwidths[5];
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extern options_db_t freqman_bandwidths[6];
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// extern options_db_t freqman_steps; // now included via ui_receiver.hpp
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extern options_db_t freqman_steps_short;
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@ -93,9 +93,9 @@ void NBFMConfig::apply(const uint8_t squelch_level) const {
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void WFMConfig::apply() const {
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const WFMConfigureMessage message{
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decim_0, // taps_200k_decim_0 , taps_180k_wfm_decim_0, taps_40k_wfm_decim_0
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decim_1, // taps_200k_decim_1 or taps_180k_wfm_decim_1, taps_40k_wfm_decim_1
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taps_64_lp_156_198,
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decim_0, // Dynamic array 24 taps : taps_200k_decim_0 , taps_180k_wfm_decim_0, taps_40k_wfm_decim_0
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decim_1, // Dynamic array 16 taps : taps_200k_decim_1 or taps_180k_wfm_decim_1, taps_40k_wfm_decim_1
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taps_64_lp_156_198, // Fixed channel audio filter 15khz
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75000,
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audio_48k_hpf_30hz_config,
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audio_48k_deemph_2122_6_config};
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@ -103,6 +103,18 @@ void WFMConfig::apply() const {
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audio::set_rate(audio::Rate::Hz_48000);
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}
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void WFMAMConfig::apply() const {
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const WFMAMConfigureMessage message{
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decim_0, // Fixed 24 taps array : taps_16k0_decim_0
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decim_1, // Fixed 32 taps array : taps_84k_wfm_decim_1
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taps_64_lp_1875_2166, // Fixed channel audio filter , 64 taps array , to filter DSB AM 2k4 carrier before demod. AM .
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17000, // NOAA satellite tx , FM deviation = +-17Khz.
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apt_audio_12k_notch_2k4_config,
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apt_audio_12k_lpf_2000hz_config};
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send_message(&message);
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audio::set_rate(audio::Rate::Hz_12000);
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}
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void set_tone(const uint32_t index, const uint32_t delta, const uint32_t duration) {
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shared_memory.bb_data.tones_data.tone_defs[index].delta = delta;
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shared_memory.bb_data.tones_data.tone_defs[index].duration = duration;
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@ -56,12 +56,19 @@ struct NBFMConfig {
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};
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struct WFMConfig {
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const fir_taps_real<24> decim_0; // To handle both WFM filters , 200k and 40K for NOAA APT
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const fir_taps_real<24> decim_0; // To handle all 3 WFM filters , 200k, 180k and 40K-
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const fir_taps_real<16> decim_1;
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void apply() const;
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};
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struct WFMAMConfig {
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const fir_taps_real<24> decim_0; // To handle WFM filter BW=40K for NOAA APT
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const fir_taps_real<32> decim_1;
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void apply() const;
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};
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void set_tone(const uint32_t index, const uint32_t delta, const uint32_t duration);
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void set_tones_config(const uint32_t bw, const uint32_t pre_silence, const uint16_t tone_count, const bool dual_tone, const bool audio_out);
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void kill_tone();
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@ -157,6 +157,9 @@ bool DebugDumpView::debug_dump_func() {
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case ReceiverModel::Mode::WidebandFMAudio:
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pmem_dump_file.write_line("modulation: Mode::WidebandFMAudio");
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break;
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case ReceiverModel::Mode::WFMAudioAMApt:
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pmem_dump_file.write_line("modulation: Mode::WFMAudioAMApt");
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break;
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case ReceiverModel::Mode::SpectrumAnalysis:
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pmem_dump_file.write_line("modulation: Mode::SpectrumAnalysis");
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break;
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@ -42,7 +42,8 @@ enum freqman_entry_modulation : uint8_t {
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NFM_MODULATION,
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WFM_MODULATION,
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SPEC_MODULATION,
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AMFM_MODULATION // Added for Wefax.
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AMFM_MODULATION, // Added for HF Wefax.demod APT signal
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WFMAM_MODULATION // Added for NOAA 137 Mhz satellite band, demod APT signal.
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};
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// TODO: Can these be removed after Recon is migrated to FreqmanDB?
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@ -49,10 +49,11 @@ options_t freqman_modulations = {
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{"NFM", 1},
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{"WFM", 2},
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{"SPEC", 3},
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{"AMFM", 4},
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{"AMFM", 4}, // To handle HF Wefax AM and FM demod. inside Audio App.
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{"FMAM", 5}, // To handle NOAA 137 Mhz Sat FM and AM demod inside Audio App.
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};
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options_t freqman_bandwidths[5] = {
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options_t freqman_bandwidths[6] = {
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{
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// AM
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{"DSB 9k", 0},
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@ -103,7 +104,11 @@ options_t freqman_bandwidths[5] = {
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},
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{
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// AMFM for Wefax-
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{"USB+FM", 5}, // Fixed RX demodul AM config Index 5 : USB+FM for Audio Weather fax (WFAX) tones.
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{"USB+FM", 5}, // Fixed RX demod. AM config Index 5 : USB+FM for Audio Weather fax (WFAX) tones.
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},
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{
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// WFMAM for NOAA satellites, 137 Mhz band
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{"FM+AM(DSB)", 1}, // Fixed RX demod- WFM config Index 1 : FM+AM for Audio NOAA APT ones.
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},
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};
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@ -41,20 +41,20 @@ namespace {
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static constexpr std::array<baseband::AMConfig, 12> am_configs{{
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// we config here all the non COMMON parameters to each AM modulation type in RX.
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{taps_6k0_decim_1, taps_9k0_decim_2, taps_9k0_dsb_channel, AMConfigureMessage::Modulation::DSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_1}, // AM DSB-C BW 9khz (+-4k5) commercial EU bandwidth .
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{taps_6k0_decim_1, taps_6k0_decim_2, taps_6k0_dsb_channel, AMConfigureMessage::Modulation::DSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_1}, // AM DSB-C BW 6khz (+-3k0) narrow AM , ham equipments.
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{taps_6k0_decim_1, taps_6k0_decim_2, taps_2k8_usb_channel, AMConfigureMessage::Modulation::SSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_1}, // SSB USB BW 2K8 (+ 2K8) SSB ham equipments.
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{taps_6k0_decim_1, taps_6k0_decim_2, taps_2k8_lsb_channel, AMConfigureMessage::Modulation::SSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_1}, // SSB LSB BW 2K8 (- 2K8) SSB ham equipments.
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{taps_6k0_decim_1, taps_6k0_decim_2, taps_0k7_usb_channel, AMConfigureMessage::Modulation::SSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_1}, // SSB USB BW 0K7 (+ 0K7) To get audio tone from CW Morse, assuming tx shifted +700hz aprox
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{taps_6k0_decim_1, taps_6k0_decim_2, taps_2k6_usb_wefax_channel, AMConfigureMessage::Modulation::SSB_FM, audio_12k_lpf_1500hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_1}, // SSB USB+FM to demod. Subcarrier FM Audio Tones to get APT Weather Fax.
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{taps_6k0_decim_1, taps_9k0_decim_2, taps_9k0_dsb_channel, AMConfigureMessage::Modulation::DSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_1}, // AM DSB-C BW 9khz (+-4k5) commercial EU bandwidth .
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{taps_6k0_decim_1, taps_6k0_decim_2, taps_6k0_dsb_channel, AMConfigureMessage::Modulation::DSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_1}, // AM DSB-C BW 6khz (+-3k0) narrow AM , ham equipments.
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{taps_6k0_decim_1, taps_6k0_decim_2, taps_2k8_usb_channel, AMConfigureMessage::Modulation::SSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_1}, // SSB USB BW 2K8 (+ 2K8) SSB ham equipments.
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{taps_6k0_decim_1, taps_6k0_decim_2, taps_2k8_lsb_channel, AMConfigureMessage::Modulation::SSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_1}, // SSB LSB BW 2K8 (- 2K8) SSB ham equipments.
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{taps_6k0_decim_1, taps_6k0_decim_2, taps_0k7_usb_channel, AMConfigureMessage::Modulation::SSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_1}, // SSB USB BW 0K7 (+ 0K7) To get audio tone from CW Morse, assuming tx shifted +700hz aprox
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{taps_6k0_decim_1, taps_6k0_decim_2, taps_2k6_usb_wefax_channel, AMConfigureMessage::Modulation::SSB_FM, apt_audio_12k_lpf_1500hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_1}, // SSB USB+FM to demod. Subcarrier FM Audio Tones to get APT Weather Fax.
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// below options for Waterfall zoom x 2
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{taps_6k0_narrow_decim_1, taps_9k0_decim_2, taps_9k0_dsb_channel, AMConfigureMessage::Modulation::DSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_2}, // AM DSB-C BW 9khz (+-4k5) commercial EU bandwidth .
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{taps_6k0_narrow_decim_1, taps_6k0_decim_2, taps_6k0_dsb_channel, AMConfigureMessage::Modulation::DSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_2}, // AM DSB-C BW 6khz (+-3k0) narrow AM , ham equipments.
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{taps_6k0_narrow_decim_1, taps_6k0_decim_2, taps_2k8_usb_channel, AMConfigureMessage::Modulation::SSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_2}, // SSB USB BW 2K8 (+ 2K8) SSB ham equipments.
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{taps_6k0_narrow_decim_1, taps_6k0_decim_2, taps_2k8_lsb_channel, AMConfigureMessage::Modulation::SSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_2}, // SSB LSB BW 2K8 (- 2K8) SSB ham equipments.
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{taps_6k0_narrow_decim_1, taps_6k0_decim_2, taps_0k7_usb_channel, AMConfigureMessage::Modulation::SSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_2}, // SSB USB BW 0K7 (+ 0K7) To get audio tone from CW Morse, assuming tx shifted +700hz aprox
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{taps_6k0_narrow_decim_1, taps_6k0_decim_2, taps_2k6_usb_wefax_channel, AMConfigureMessage::Modulation::SSB_FM, audio_12k_lpf_1500hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_2}, // SSB USB+FM to demod. Subcarrier FM Audio Tones to get APT Weather Fax with waterfall zoom x 2 (we need taps_6k0_narrow_decim_1 to minimize aliasing)
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{taps_6k0_narrow_decim_1, taps_9k0_decim_2, taps_9k0_dsb_channel, AMConfigureMessage::Modulation::DSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_2}, // AM DSB-C BW 9khz (+-4k5) commercial EU bandwidth .
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{taps_6k0_narrow_decim_1, taps_6k0_decim_2, taps_6k0_dsb_channel, AMConfigureMessage::Modulation::DSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_2}, // AM DSB-C BW 6khz (+-3k0) narrow AM , ham equipments.
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{taps_6k0_narrow_decim_1, taps_6k0_decim_2, taps_2k8_usb_channel, AMConfigureMessage::Modulation::SSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_2}, // SSB USB BW 2K8 (+ 2K8) SSB ham equipments.
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{taps_6k0_narrow_decim_1, taps_6k0_decim_2, taps_2k8_lsb_channel, AMConfigureMessage::Modulation::SSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_2}, // SSB LSB BW 2K8 (- 2K8) SSB ham equipments.
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{taps_6k0_narrow_decim_1, taps_6k0_decim_2, taps_0k7_usb_channel, AMConfigureMessage::Modulation::SSB, audio_12k_hpf_300hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_2}, // SSB USB BW 0K7 (+ 0K7) To get audio tone from CW Morse, assuming tx shifted +700hz aprox
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{taps_6k0_narrow_decim_1, taps_6k0_decim_2, taps_2k6_usb_wefax_channel, AMConfigureMessage::Modulation::SSB_FM, apt_audio_12k_lpf_1500hz_config, (int)AMConfigureMessage::Zoom_waterfall::ZOOM_x_2}, // SSB USB+FM to demod. Subcarrier FM Audio Tones to get APT Weather Fax with waterfall zoom x 2 (we need taps_6k0_narrow_decim_1 to minimize aliasing)
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}};
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static constexpr std::array<baseband::NBFMConfig, 3> nbfm_configs{{
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@ -69,6 +69,10 @@ static constexpr std::array<baseband::WFMConfig, 3> wfm_configs{{
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{taps_40k_wfm_decim_0, taps_40k_wfm_decim_1},
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}};
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static constexpr std::array<baseband::WFMAMConfig, 1> wfmam_configs{{
|
||||
{taps_16k0_decim_0, taps_84k_wfmam_decim_1},
|
||||
}};
|
||||
|
||||
} /* namespace */
|
||||
|
||||
rf::Frequency ReceiverModel::target_frequency() const {
|
||||
|
|
@ -187,6 +191,17 @@ void ReceiverModel::set_wfm_configuration(uint8_t n) {
|
|||
}
|
||||
}
|
||||
|
||||
uint8_t ReceiverModel::wfmam_configuration() const {
|
||||
return settings_.wfmam_config_index;
|
||||
}
|
||||
|
||||
void ReceiverModel::set_wfmam_configuration(uint8_t n) {
|
||||
if (n < wfmam_configs.size()) {
|
||||
settings_.wfmam_config_index = n;
|
||||
update_modulation();
|
||||
}
|
||||
}
|
||||
|
||||
uint8_t ReceiverModel::squelch_level() const {
|
||||
return settings_.squelch_level;
|
||||
}
|
||||
|
|
@ -340,6 +355,10 @@ void ReceiverModel::update_modulation() {
|
|||
update_wfm_configuration();
|
||||
break;
|
||||
|
||||
case Mode::WFMAudioAMApt:
|
||||
update_wfmam_configuration();
|
||||
break;
|
||||
|
||||
case Mode::SpectrumAnalysis:
|
||||
case Mode::Capture:
|
||||
break;
|
||||
|
|
@ -362,6 +381,10 @@ void ReceiverModel::update_wfm_configuration() {
|
|||
wfm_configs[wfm_configuration()].apply();
|
||||
}
|
||||
|
||||
void ReceiverModel::update_wfmam_configuration() {
|
||||
wfmam_configs[wfmam_configuration()].apply(); // update with different index for Wefax.
|
||||
}
|
||||
|
||||
void ReceiverModel::update_antenna_bias() {
|
||||
if (enabled_)
|
||||
radio::set_antenna_bias(portapack::get_antenna_bias());
|
||||
|
|
|
|||
|
|
@ -41,8 +41,9 @@ class ReceiverModel {
|
|||
NarrowbandFMAudio = 1,
|
||||
WidebandFMAudio = 2,
|
||||
SpectrumAnalysis = 3,
|
||||
AMAudioFMApt = 4, // Added to handle HF WeatherFax , SSB (USB demod) + Tone_Subcarrier FM demod
|
||||
Capture = 5,
|
||||
AMAudioFMApt = 4, // Added to handle HF WeatherFax , SSB (USB demod) + Tone_Subcarrier FM demod
|
||||
WFMAudioAMApt = 5, // Added to handle SAT Weather map , NOAA 137 Mhz.
|
||||
Capture = 6,
|
||||
};
|
||||
|
||||
struct settings_t {
|
||||
|
|
@ -56,6 +57,7 @@ class ReceiverModel {
|
|||
Mode mode = Mode::NarrowbandFMAudio;
|
||||
uint8_t am_config_index = 0;
|
||||
uint8_t amfm_config_index = 0;
|
||||
uint8_t wfmam_config_index = 0;
|
||||
uint8_t nbfm_config_index = 0;
|
||||
uint8_t wfm_config_index = 0;
|
||||
uint8_t squelch_level = 80;
|
||||
|
|
@ -98,6 +100,9 @@ class ReceiverModel {
|
|||
uint8_t wfm_configuration() const;
|
||||
void set_wfm_configuration(uint8_t n);
|
||||
|
||||
uint8_t wfmam_configuration() const;
|
||||
void set_wfmam_configuration(uint8_t n);
|
||||
|
||||
uint8_t squelch_level() const;
|
||||
void set_squelch_level(uint8_t v);
|
||||
|
||||
|
|
@ -151,6 +156,7 @@ class ReceiverModel {
|
|||
void update_amfm_configuration();
|
||||
void update_nbfm_configuration();
|
||||
void update_wfm_configuration();
|
||||
void update_wfmam_configuration();
|
||||
|
||||
void update_antenna_bias();
|
||||
void update_headphone_volume();
|
||||
|
|
|
|||
|
|
@ -52,6 +52,19 @@ void AudioOutput::write_unprocessed(const buffer_s16_t& audio) {
|
|||
});
|
||||
}
|
||||
|
||||
void AudioOutput::apt_write(const buffer_s16_t& audio) {
|
||||
std::array<float, 32> audio_f;
|
||||
for (size_t i = 0; i < audio.count; i++) {
|
||||
cur = audio.p[i];
|
||||
cur2 = cur * cur;
|
||||
mag_am = sqrtf(prev2 + cur2 - (2 * prev * cur * cos_theta)) / sin_theta;
|
||||
audio_f[i] = mag_am * ki; // normalize.
|
||||
prev = cur;
|
||||
prev2 = cur2;
|
||||
}
|
||||
write(buffer_f32_t{audio_f.data(), audio.count, audio.sampling_rate});
|
||||
}
|
||||
|
||||
void AudioOutput::write(const buffer_s16_t& audio) {
|
||||
std::array<float, 32> audio_f;
|
||||
for (size_t i = 0; i < audio.count; i++) {
|
||||
|
|
@ -72,8 +85,8 @@ void AudioOutput::on_block(const buffer_f32_t& audio) {
|
|||
if (do_processing) {
|
||||
const auto audio_present_now = squelch.execute(audio);
|
||||
|
||||
hpf.execute_in_place(audio); // IIRBiquadFilter name is "hpf", but we will call with "hpf-coef" for all except AMFM (WFAX) with "lpf-coef"
|
||||
deemph.execute_in_place(audio);
|
||||
hpf.execute_in_place(audio); // IIRBiquadFilter name is "hpf", but we will call with "hpf-coef" for all except AMFM (WFAX) with "lpf-coef" and notch for WFMAM (NOAA)
|
||||
deemph.execute_in_place(audio); // IIRBiquadFilter name is "deemph", but we will call LPF de-emphasis or other LPF for WFAM (NOAA).
|
||||
|
||||
audio_present_history = (audio_present_history << 1) | (audio_present_now ? 1 : 0);
|
||||
audio_present = (audio_present_history != 0);
|
||||
|
|
|
|||
|
|
@ -46,6 +46,7 @@ class AudioOutput {
|
|||
const float squelch_threshold = 0.0f);
|
||||
|
||||
void write_unprocessed(const buffer_s16_t& audio);
|
||||
void apt_write(const buffer_s16_t& audio);
|
||||
void write(const buffer_s16_t& audio);
|
||||
void write(const buffer_f32_t& audio);
|
||||
|
||||
|
|
@ -58,6 +59,10 @@ class AudioOutput {
|
|||
private:
|
||||
static constexpr float k = 32768.0f;
|
||||
static constexpr float ki = 1.0f / k;
|
||||
static constexpr float cos_theta = 0.30901699437494742410f;
|
||||
static constexpr float sin_theta = 0.95105651629515357212f;
|
||||
|
||||
float cur = 0.0f, cur2 = 0.0f, prev = 0.0f, prev2 = 0.0f, mag_am = 0.0f;
|
||||
|
||||
BlockDecimator<int16_t, 32> block_buffer_s16{1};
|
||||
BlockDecimator<float, 32> block_buffer{1};
|
||||
|
|
|
|||
|
|
@ -161,7 +161,7 @@ void WeFaxRx::configure(const WeFaxRxConfigureMessage& message) {
|
|||
channel_filter_high_f = taps_2k6_usb_wefax_channel.high_frequency_normalized * channel_filter_input_fs;
|
||||
channel_filter_transition = taps_2k6_usb_wefax_channel.transition_normalized * channel_filter_input_fs;
|
||||
channel_spectrum.set_decimation_factor(1.0f);
|
||||
audio_output.configure(audio_12k_lpf_1500hz_config); // hpf in all AM demod modes (AM-6K/9K, USB/LSB,DSB), except Wefax (lpf there).
|
||||
audio_output.configure(apt_audio_12k_lpf_1500hz_config); // hpf in all AM demod modes (AM-6K/9K, USB/LSB,DSB), except Wefax (lpf there).
|
||||
|
||||
lpm = message.lpm;
|
||||
ioc_mode = message.ioc;
|
||||
|
|
|
|||
|
|
@ -47,23 +47,37 @@ void WidebandFMAudio::execute(const buffer_c8_t& buffer) {
|
|||
channel_spectrum.feed(channel, channel_filter_low_f, channel_filter_high_f, channel_filter_transition);
|
||||
}
|
||||
|
||||
/* 384kHz complex<int16_t>[256]
|
||||
/* 384kHz complex<int16_t>[256] for wfm
|
||||
* -> FM demodulation
|
||||
* -> 384kHz int16_t[256] */
|
||||
/* TODO: To improve adjacent channel rejection, implement complex channel filter:
|
||||
* pass < +/- 100kHz, stop > +/- 200kHz
|
||||
*/
|
||||
|
||||
auto audio_oversampled = demod.execute(channel, work_audio_buffer);
|
||||
/* 96kHz complex<int16_t>[64] for wfmam NOAA
|
||||
* -> FM demodulation
|
||||
* -> 96kHz int16_t[64] */
|
||||
|
||||
/* 384kHz int16_t[256]
|
||||
auto audio_oversampled = demod.execute(channel, work_audio_buffer); // fs 384khz wfm , 96khz wfmam for NOAA
|
||||
|
||||
/* 384kHz int16_t[256] for wfm
|
||||
* -> 4th order CIC decimation by 2, gain of 1
|
||||
* -> 192kHz int16_t[128] */
|
||||
|
||||
/* 96kHz int16_t[64] for wfam
|
||||
* -> 4th order CIC decimation by 2, gain of 1
|
||||
* -> 48kHz int16_t[32] */
|
||||
|
||||
auto audio_4fs = audio_dec_1.execute(audio_oversampled, work_audio_buffer);
|
||||
|
||||
/* 192kHz int16_t[128]
|
||||
/* 192kHz int16_t[128] for wfm
|
||||
* -> 4th order CIC decimation by 2, gain of 1
|
||||
* -> 96kHz int16_t[64] */
|
||||
|
||||
/* 48kHz int16_t[32] for wfman
|
||||
* -> 4th order CIC decimation by 2, gain of 1
|
||||
* -> 24kHz int16_t[16] */
|
||||
|
||||
auto audio_2fs = audio_dec_2.execute(audio_4fs, work_audio_buffer);
|
||||
|
||||
// Input: 96kHz int16_t[64]
|
||||
|
|
@ -118,13 +132,24 @@ void WidebandFMAudio::execute(const buffer_c8_t& buffer) {
|
|||
break;
|
||||
}
|
||||
|
||||
/* 96kHz int16_t[64]
|
||||
/* 96kHz int16_t[64] for wfm
|
||||
* -> FIR filter, <15kHz (0.156fs) pass, >19kHz (0.198fs) stop, gain of 1
|
||||
* -> 48kHz int16_t[32] */
|
||||
|
||||
/* 24kHz int16_t[16] for wfmam
|
||||
* -> FIR filter, <4.5kHz (0.1875fs) pass, >5.2kHz (0.2166fs) stop, gain of 1
|
||||
* -> 12kHz int16_t[8] */
|
||||
|
||||
auto audio = audio_filter.execute(audio_2fs, work_audio_buffer);
|
||||
|
||||
/* -> 48kHz int16_t[32] */
|
||||
audio_output.write(audio);
|
||||
/* -> 48kHz int16_t[32] for wfm , */
|
||||
/* -> 12kHz int16_t[8] for wfmam , */
|
||||
|
||||
if (decim_1.decimation_factor() == 2) {
|
||||
audio_output.write(audio); // we are in original wfm , decim_1.decimation_factor == 2
|
||||
} else {
|
||||
audio_output.apt_write(audio); // we are in added wfmam (noaa), decim_1.decimation_factor == 8
|
||||
}
|
||||
}
|
||||
|
||||
void WidebandFMAudio::post_message(const buffer_c16_t& data) {
|
||||
|
|
@ -142,7 +167,11 @@ void WidebandFMAudio::on_message(const Message* const message) {
|
|||
break;
|
||||
|
||||
case Message::ID::WFMConfigure:
|
||||
configure(*reinterpret_cast<const WFMConfigureMessage*>(message));
|
||||
configure_wfm(*reinterpret_cast<const WFMConfigureMessage*>(message));
|
||||
break;
|
||||
|
||||
case Message::ID::WFMAMConfigure:
|
||||
configure_wfmam(*reinterpret_cast<const WFMAMConfigureMessage*>(message));
|
||||
break;
|
||||
|
||||
case Message::ID::CaptureConfig:
|
||||
|
|
@ -154,20 +183,56 @@ void WidebandFMAudio::on_message(const Message* const message) {
|
|||
}
|
||||
}
|
||||
|
||||
void WidebandFMAudio::configure(const WFMConfigureMessage& message) {
|
||||
void WidebandFMAudio::configure_wfm(const WFMConfigureMessage& message) {
|
||||
constexpr size_t decim_0_input_fs = baseband_fs;
|
||||
constexpr size_t decim_0_output_fs = decim_0_input_fs / decim_0.decimation_factor;
|
||||
|
||||
constexpr size_t decim_1_input_fs = decim_0_output_fs;
|
||||
constexpr size_t decim_1_output_fs = decim_1_input_fs / decim_1.decimation_factor;
|
||||
|
||||
constexpr size_t demod_input_fs = decim_1_output_fs;
|
||||
decim_0.configure(message.decim_0_filter.taps);
|
||||
// decim_1.configure(message.decim_1_filter.taps); // Original .
|
||||
|
||||
// TODO dynamic decim1 , with decimation 2 / 8 and 16 x taps , / 32 taps .
|
||||
// Temptatively , I splitted, in two WidebandFMAudio::configure_wfm / WidebandFMAudio::configure_wfmam and dynamically /2, /8 (here /2)
|
||||
// decim_1.set<dsp::decimate::FIRC16xR16x16Decim2>().configure(message.decim_1_filter.taps); // for wfm
|
||||
// decim_1.set<dsp::decimate::FIRC16xR16x32Decim8>().configure(taps_84k_wfmam_decim_1.taps); // for wfmam
|
||||
decim_1.set<dsp::decimate::FIRC16xR16x16Decim2>().configure(message.decim_1_filter.taps); // for wfm
|
||||
size_t decim_1_output_fs = decim_1_input_fs / decim_1.decimation_factor(); // wfm , decim_1.decimation_factor() = /2 , if applied after the line : decim_1.set<dsp::decimate::FIRC16xR16x16Decim2>().configure(message.decim_1_filter.taps);
|
||||
size_t demod_input_fs = decim_1_output_fs;
|
||||
|
||||
spectrum_interval_samples = decim_1_output_fs / spectrum_rate_hz;
|
||||
spectrum_samples = 0;
|
||||
|
||||
channel_filter_low_f = message.decim_1_filter.low_frequency_normalized * decim_1_input_fs;
|
||||
channel_filter_high_f = message.decim_1_filter.high_frequency_normalized * decim_1_input_fs;
|
||||
channel_filter_transition = message.decim_1_filter.transition_normalized * decim_1_input_fs;
|
||||
demod.configure(demod_input_fs, message.deviation);
|
||||
audio_filter.configure(message.audio_filter.taps);
|
||||
audio_output.configure(message.audio_hpf_config, message.audio_deemph_config);
|
||||
|
||||
channel_spectrum.set_decimation_factor(1);
|
||||
|
||||
configured = true;
|
||||
}
|
||||
|
||||
void WidebandFMAudio::configure_wfmam(const WFMAMConfigureMessage& message) {
|
||||
constexpr size_t decim_0_input_fs = baseband_fs;
|
||||
constexpr size_t decim_0_output_fs = decim_0_input_fs / decim_0.decimation_factor;
|
||||
constexpr size_t decim_1_input_fs = decim_0_output_fs;
|
||||
|
||||
decim_0.configure(message.decim_0_filter.taps);
|
||||
decim_1.configure(message.decim_1_filter.taps);
|
||||
|
||||
// decim_1.configure(message.decim_1_filter.taps); // Original .
|
||||
// TODO dynamic decim1 , with decimation 2 / 8 and 16 x taps , / 32 taps .
|
||||
// Temptatively , I splitted, in two WidebandFMAudio::configure_wfm / WidebandFMAudio::configure_wfmam and dynamically /2, /8 . (here /8)
|
||||
// decim_1.set<dsp::decimate::FIRC16xR16x16Decim2>().configure(message.decim_1_filter.taps); // for wfm
|
||||
// decim_1.set<dsp::decimate::FIRC16xR16x32Decim8>().configure(message.decim_1_filter.taps); // for wfmam
|
||||
decim_1.set<dsp::decimate::FIRC16xR16x32Decim8>().configure(message.decim_1_filter.taps); // for wfmam
|
||||
size_t decim_1_output_fs = decim_1_input_fs / decim_1.decimation_factor(); // wfmam, decim_1.decimation_factor() = /8 ,if applied after the line, decim_1.set<dsp::decimate::FIRC16xR16x16Decim2>().configure(message.decim_1_filter.taps);
|
||||
size_t demod_input_fs = decim_1_output_fs;
|
||||
|
||||
spectrum_interval_samples = decim_1_output_fs / spectrum_rate_hz;
|
||||
spectrum_samples = 0;
|
||||
|
||||
channel_filter_low_f = message.decim_1_filter.low_frequency_normalized * decim_1_input_fs;
|
||||
channel_filter_high_f = message.decim_1_filter.high_frequency_normalized * decim_1_input_fs;
|
||||
channel_filter_transition = message.decim_1_filter.transition_normalized * decim_1_input_fs;
|
||||
|
|
|
|||
|
|
@ -35,6 +35,46 @@
|
|||
#include "audio_output.hpp"
|
||||
#include "spectrum_collector.hpp"
|
||||
|
||||
#include <array>
|
||||
#include <memory>
|
||||
#include <tuple>
|
||||
#include <variant>
|
||||
|
||||
template <typename... Args>
|
||||
class MultiDecimator {
|
||||
public:
|
||||
/* Dispatches to the underlying type's execute. */
|
||||
template <typename Source, typename Destination>
|
||||
Destination execute(
|
||||
const Source& src,
|
||||
const Destination& dst) {
|
||||
return std::visit(
|
||||
[&src, &dst](auto&& arg) -> Destination {
|
||||
return arg.execute(src, dst);
|
||||
},
|
||||
decimator_);
|
||||
}
|
||||
|
||||
size_t decimation_factor() const {
|
||||
return std::visit(
|
||||
[](auto&& arg) -> size_t {
|
||||
return arg.decimation_factor;
|
||||
},
|
||||
decimator_);
|
||||
}
|
||||
|
||||
/* Sets this decimator to a new instance of the specified decimator type.
|
||||
* NB: The instance is returned by-ref so 'configure' can easily be called. */
|
||||
template <typename Decimator>
|
||||
Decimator& set() {
|
||||
decimator_ = Decimator{};
|
||||
return std::get<Decimator>(decimator_);
|
||||
}
|
||||
|
||||
private:
|
||||
std::variant<Args...> decimator_{};
|
||||
};
|
||||
|
||||
class WidebandFMAudio : public BasebandProcessor {
|
||||
public:
|
||||
void execute(const buffer_c8_t& buffer) override;
|
||||
|
|
@ -59,7 +99,16 @@ class WidebandFMAudio : public BasebandProcessor {
|
|||
complex_audio.size()};
|
||||
|
||||
dsp::decimate::FIRC8xR16x24FS4Decim4 decim_0{};
|
||||
dsp::decimate::FIRC16xR16x16Decim2 decim_1{};
|
||||
// dsp::decimate::FIRC16xR16x16Decim2 decim_1{}; //original condition , before adding wfmam
|
||||
|
||||
// decim_1 will handle different types of FIR filters depending on selection.
|
||||
MultiDecimator<
|
||||
dsp::decimate::FIRC16xR16x16Decim2,
|
||||
dsp::decimate::FIRC16xR16x32Decim8>
|
||||
decim_1{};
|
||||
|
||||
// dsp::decimate::FIRC16xR16x32Decim8 decim_1{}; // For FMAM
|
||||
|
||||
int32_t channel_filter_low_f = 0;
|
||||
int32_t channel_filter_high_f = 0;
|
||||
int32_t channel_filter_transition = 0;
|
||||
|
|
@ -94,7 +143,8 @@ class WidebandFMAudio : public BasebandProcessor {
|
|||
BasebandThread baseband_thread{baseband_fs, this, baseband::Direction::Receive};
|
||||
RSSIThread rssi_thread{};
|
||||
|
||||
void configure(const WFMConfigureMessage& message);
|
||||
void configure_wfm(const WFMConfigureMessage& message);
|
||||
void configure_wfmam(const WFMAMConfigureMessage& message);
|
||||
void capture_config(const CaptureConfigMessage& message);
|
||||
void post_message(const buffer_c16_t& data);
|
||||
};
|
||||
|
|
|
|||
|
|
@ -1325,6 +1325,128 @@ constexpr fir_taps_real<16> taps_40k_wfm_decim_1 = {
|
|||
}},
|
||||
};
|
||||
|
||||
// WFMAM decimation filters ////////////////////////////////////////////////
|
||||
// Used for NOAA 137 Mhz APT sat demod.
|
||||
// IFIR prototype filter: fs=768000, pass=42000, stop=95000, decim=8, fout=96000
|
||||
constexpr fir_taps_real<32> taps_84k_wfmam_decim_1 = {
|
||||
.low_frequency_normalized = -42000.0f / 768000.0f,
|
||||
.high_frequency_normalized = 42000.0f / 768000.0f,
|
||||
.transition_normalized = 53000.0f / 768000.0f,
|
||||
.taps = {{
|
||||
13,
|
||||
-6,
|
||||
-47,
|
||||
-116,
|
||||
-207,
|
||||
-294,
|
||||
-332,
|
||||
-266,
|
||||
-39,
|
||||
386,
|
||||
1012,
|
||||
1795,
|
||||
2648,
|
||||
3452,
|
||||
4079,
|
||||
4423,
|
||||
4423,
|
||||
4079,
|
||||
3452,
|
||||
2648,
|
||||
1795,
|
||||
1012,
|
||||
386,
|
||||
-39,
|
||||
-266,
|
||||
-332,
|
||||
-294,
|
||||
-207,
|
||||
-116,
|
||||
-47,
|
||||
-6,
|
||||
13,
|
||||
}},
|
||||
};
|
||||
|
||||
/* 1st Wideband FM demod baseband filter of audio AM tones ,
|
||||
to pass all DSB band of AM fsubcarrier 2.4Khz mod. with APT */
|
||||
/* 24kHz int16_t input
|
||||
* -> FIR filter, <4.5kHz (0.1875fs) pass, >5.2kHz (0.2166fs) stop
|
||||
* -> 12kHz int16_t output, gain of 1.0 (I think).
|
||||
* sum(abs(taps)): 125152 , before <125270>, very similar.
|
||||
*/
|
||||
constexpr fir_taps_real<64> taps_64_lp_1875_2166{
|
||||
.low_frequency_normalized = -0.1875f,
|
||||
.high_frequency_normalized = 0.1875f,
|
||||
.transition_normalized = 0.03f,
|
||||
.taps = {{
|
||||
38,
|
||||
-21,
|
||||
-51,
|
||||
-9,
|
||||
77,
|
||||
82,
|
||||
-50,
|
||||
-168,
|
||||
-67,
|
||||
190,
|
||||
253,
|
||||
-61,
|
||||
-403,
|
||||
-243,
|
||||
356,
|
||||
616,
|
||||
15,
|
||||
-814,
|
||||
-671,
|
||||
550,
|
||||
1335,
|
||||
334,
|
||||
-1527,
|
||||
-1689,
|
||||
725,
|
||||
2978,
|
||||
1455,
|
||||
-3277,
|
||||
-5361,
|
||||
830,
|
||||
13781,
|
||||
24549,
|
||||
24549,
|
||||
13781,
|
||||
830,
|
||||
-5361,
|
||||
-3277,
|
||||
1455,
|
||||
2978,
|
||||
725,
|
||||
-1689,
|
||||
-1527,
|
||||
334,
|
||||
1335,
|
||||
550,
|
||||
-671,
|
||||
-814,
|
||||
15,
|
||||
616,
|
||||
356,
|
||||
-243,
|
||||
-403,
|
||||
-61,
|
||||
253,
|
||||
190,
|
||||
-67,
|
||||
-168,
|
||||
-50,
|
||||
82,
|
||||
77,
|
||||
-9,
|
||||
-51,
|
||||
-21,
|
||||
38,
|
||||
}},
|
||||
};
|
||||
|
||||
// TPMS decimation filters ////////////////////////////////////////////////
|
||||
|
||||
// IFIR image-reject filter: fs=2457600, pass=100000, stop=407200, decim=4, fout=614400
|
||||
|
|
|
|||
|
|
@ -56,8 +56,8 @@ constexpr iir_biquad_config_t audio_12k_hpf_300hz_config{
|
|||
{1.00000000f, -1.77863178f, 0.80080265f}};
|
||||
|
||||
// scipy.signal.butter(2, 1500 / 6000.0, 'low', analog=False)
|
||||
constexpr iir_biquad_config_t audio_12k_lpf_1500hz_config{
|
||||
// Added to lpf the audio in wefax mode , before sending to SD card or spk.
|
||||
constexpr iir_biquad_config_t apt_audio_12k_lpf_1500hz_config{
|
||||
// Added to lpf the apt audio in wefax mode , before sending to SD card or spk.
|
||||
{0.09763107f, 0.19526215f, 0.09763107f},
|
||||
{1.00000000f, -0.94280904f, 0.33333333f}};
|
||||
|
||||
|
|
@ -108,4 +108,15 @@ constexpr iir_biquad_config_t audio_48k_deemph_2122_6_config{
|
|||
{0.12264116f, 0.12264116f, 0.00000000f},
|
||||
{1.00000000f, -0.75471767f, 0.00000000f}};
|
||||
|
||||
// scipy.signal.iirnotch(f0, Q, fs) = signal.iirnotch(2400, 15, 12000)
|
||||
constexpr iir_biquad_config_t apt_audio_12k_notch_2k4_config{
|
||||
{0.95977357f, -0.59317269f, 0.95977357f},
|
||||
{1.00000000f, -0.59317269f, 0.91954714f}};
|
||||
|
||||
// scipy.signal.butter(2, 2000 / 6000.0, 'low', analog=False)
|
||||
constexpr iir_biquad_config_t apt_audio_12k_lpf_2000hz_config{
|
||||
// Added to lpf the apt audio in NOAA mode , before sending to SD card or spk.
|
||||
{0.15505103f, 0.31010205f, 0.15505103f},
|
||||
{1.00000000f, -0.6202041f, 0.24040821f}};
|
||||
|
||||
#endif /*__DSP_IIR_CONFIG_H__*/
|
||||
|
|
|
|||
|
|
@ -130,7 +130,7 @@ class Message {
|
|||
WeFaxRxConfigure = 73,
|
||||
WeFaxRxStatusData = 74,
|
||||
WeFaxRxImageData = 75,
|
||||
|
||||
WFMAMConfigure = 76,
|
||||
MAX
|
||||
};
|
||||
|
||||
|
|
@ -584,6 +584,32 @@ class WFMConfigureMessage : public Message {
|
|||
const iir_biquad_config_t audio_deemph_config;
|
||||
};
|
||||
|
||||
class WFMAMConfigureMessage : public Message {
|
||||
public:
|
||||
constexpr WFMAMConfigureMessage(
|
||||
const fir_taps_real<24> decim_0_filter,
|
||||
const fir_taps_real<32> decim_1_filter,
|
||||
const fir_taps_real<64> audio_filter,
|
||||
const size_t deviation,
|
||||
const iir_biquad_config_t audio_hpf_config,
|
||||
const iir_biquad_config_t audio_deemph_config)
|
||||
: Message{ID::WFMAMConfigure},
|
||||
decim_0_filter(decim_0_filter),
|
||||
decim_1_filter(decim_1_filter),
|
||||
audio_filter(audio_filter),
|
||||
deviation{deviation},
|
||||
audio_hpf_config(audio_hpf_config),
|
||||
audio_deemph_config(audio_deemph_config) {
|
||||
}
|
||||
|
||||
const fir_taps_real<24> decim_0_filter;
|
||||
const fir_taps_real<32> decim_1_filter;
|
||||
const fir_taps_real<64> audio_filter;
|
||||
const size_t deviation;
|
||||
const iir_biquad_config_t audio_hpf_config;
|
||||
const iir_biquad_config_t audio_deemph_config;
|
||||
};
|
||||
|
||||
class AMConfigureMessage : public Message {
|
||||
public:
|
||||
enum class Modulation : int32_t {
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue