Started adding decoders for RS41 radiosondes

Hopefully fixed M2K2 radiosonde battery voltage decoding
Updated binary
This commit is contained in:
furrtek 2017-11-10 02:20:44 +00:00
parent 1b93dd53e8
commit dc82f15ece
9 changed files with 122 additions and 48 deletions

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@ -112,7 +112,7 @@ void SondeView::focus() {
void SondeView::on_packet(const sonde::Packet& packet) { void SondeView::on_packet(const sonde::Packet& packet) {
//const auto hex_formatted = packet.symbols_formatted(); //const auto hex_formatted = packet.symbols_formatted();
text_signature.set(packet.signature()); text_signature.set(packet.type_string());
text_serial.set(packet.serial_number()); text_serial.set(packet.serial_number());
text_voltage.set(unit_auto_scale(packet.battery_voltage(), 2, 3) + "V"); text_voltage.set(unit_auto_scale(packet.battery_voltage(), 2, 3) + "V");

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@ -1,6 +1,7 @@
/* /*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc. * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2017 Furrtek * Copyright (C) 2017 Furrtek
* Copyright (C) 2017 NotPike (notpike@horsefucker.org)
* *
* This file is part of PortaPack. * This file is part of PortaPack.
* *

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@ -1,6 +1,7 @@
/* /*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc. * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2017 Furrtek * Copyright (C) 2017 Furrtek
* Copyright (C) 2017 NotPike (notpike@horsefucker.org)
* *
* This file is part of PortaPack. * This file is part of PortaPack.
* *

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@ -41,8 +41,9 @@ void SondeProcessor::execute(const buffer_c8_t& buffer) {
/* 38.4kHz, 32 samples */ /* 38.4kHz, 32 samples */
feed_channel_stats(decimator_out); feed_channel_stats(decimator_out);
for(size_t i=0; i<decimator_out.count; i++) { for (size_t i=0; i<decimator_out.count; i++) {
if( mf.execute_once(decimator_out.p[i]) ) { if( mf.execute_once(decimator_out.p[i]) ) {
clock_recovery_fsk_9600(mf.get_output());
clock_recovery_fsk_4800(mf.get_output()); clock_recovery_fsk_4800(mf.get_output());
} }
} }

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@ -1,6 +1,7 @@
/* /*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc. * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2017 Furrtek * Copyright (C) 2017 Furrtek
* Copyright (C) 2014 zilog80
* *
* This file is part of PortaPack. * This file is part of PortaPack.
* *
@ -113,19 +114,37 @@ private:
dsp::decimate::FIRC16xR16x32Decim8 decim_1 { }; dsp::decimate::FIRC16xR16x32Decim8 decim_1 { };
dsp::matched_filter::MatchedFilter mf { baseband::ais::square_taps_38k4_1t_p, 2 }; dsp::matched_filter::MatchedFilter mf { baseband::ais::square_taps_38k4_1t_p, 2 };
clock_recovery::ClockRecovery<clock_recovery::FixedErrorFilter> clock_recovery_fsk_4800 { // Actually 4800bits/s but the Manchester coding doubles the symbol rate
clock_recovery::ClockRecovery<clock_recovery::FixedErrorFilter> clock_recovery_fsk_9600 {
19200, 9600, { 0.0555f }, 19200, 9600, { 0.0555f },
[this](const float raw_symbol) { [this](const float raw_symbol) {
const uint_fast8_t sliced_symbol = (raw_symbol >= 0.0f) ? 1 : 0; const uint_fast8_t sliced_symbol = (raw_symbol >= 0.0f) ? 1 : 0;
this->packet_builder_fsk_4800_M10.execute(sliced_symbol); this->packet_builder_fsk_9600_Meteomodem.execute(sliced_symbol);
} }
}; };
PacketBuilder<BitPattern, NeverMatch, FixedLength> packet_builder_fsk_4800_M10 { PacketBuilder<BitPattern, NeverMatch, FixedLength> packet_builder_fsk_9600_Meteomodem {
{ 0b00110011001100110101100110110011, 32, 1 }, { 0b00110011001100110101100110110011, 32, 1 },
{ }, { },
{ 88 * 2 * 8 }, { 88 * 2 * 8 },
[this](const baseband::Packet& packet) { [this](const baseband::Packet& packet) {
const SondePacketMessage message { sonde::Packet::Type::M10, packet }; const SondePacketMessage message { sonde::Packet::Type::Meteomodem_unknown, packet };
shared_memory.application_queue.push(message);
}
};
clock_recovery::ClockRecovery<clock_recovery::FixedErrorFilter> clock_recovery_fsk_4800 {
19200, 4800, { 0.0555f },
[this](const float raw_symbol) {
const uint_fast8_t sliced_symbol = (raw_symbol >= 0.0f) ? 1 : 0;
this->packet_builder_fsk_4800_Vaisala.execute(sliced_symbol);
}
};
PacketBuilder<BitPattern, NeverMatch, FixedLength> packet_builder_fsk_4800_Vaisala {
{ 0b00001000011011010101001110001000, 32, 1 },
{ },
{ 320 * 8 },
[this](const baseband::Packet& packet) {
const SondePacketMessage message { sonde::Packet::Type::Vaisala_RS41_SG, packet };
shared_memory.application_queue.push(message); shared_memory.application_queue.push(message);
} }
}; };

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@ -62,7 +62,7 @@ public:
} }
private: private:
std::bitset<1408> data { }; std::bitset<2560> data { };
Timestamp timestamp_ { }; Timestamp timestamp_ { };
size_t count { 0 }; size_t count { 0 };
}; };

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@ -25,12 +25,31 @@
namespace sonde { namespace sonde {
Packet::Packet(
const baseband::Packet& packet,
const Type type
) : packet_ { packet },
decoder_ { packet_ },
reader_bi_m { decoder_ },
type_ { type }
{
if (type_ == Type::Meteomodem_unknown) {
// Right now we're just sure that the sync is from a Meteomodem sonde, differentiate between models now
const uint32_t id_byte = reader_bi_m.read(1 * 8, 16);
if (id_byte == 0x649F)
type_ = Type::Meteomodem_M10;
else if (id_byte == 0x648F)
type_ = Type::Meteomodem_M2K2;
}
}
size_t Packet::length() const { size_t Packet::length() const {
return decoder_.symbols_count(); return decoder_.symbols_count();
} }
bool Packet::is_valid() const { bool Packet::is_valid() const {
return true; return true; // TODO
} }
Timestamp Packet::received_at() const { Timestamp Packet::received_at() const {
@ -41,50 +60,75 @@ Packet::Type Packet::type() const {
return type_; return type_;
} }
/*uint8_t Packet::vaisala_descramble(const uint32_t pos) {
return reader_raw.read(pos * 8, 8) ^ vaisala_mask[pos & 63];
};*/
uint32_t Packet::GPS_altitude() const { uint32_t Packet::GPS_altitude() const {
return (reader_.read(22 * 8, 32) / 1000) - 48; if ((type_ == Type::Meteomodem_M10) || (type_ == Type::Meteomodem_M2K2))
return (reader_bi_m.read(22 * 8, 32) / 1000) - 48;
else if (type_ == Type::Vaisala_RS41_SG) {
/*uint32_t altitude_ecef = 0;
for (uint32_t i = 0; i < 4; i++)
altitude_ecef = (altitude_ecef << 8) + vaisala_descramble(0x11C + i);*/
// TODO: and a bunch of maths (see ecef2elli() from RS1729)
return 0;
} else
return 0; // Unknown
} }
float Packet::GPS_latitude() const { float Packet::GPS_latitude() const {
return reader_.read(14 * 8, 32) / ((1ULL << 32) / 360.0); if ((type_ == Type::Meteomodem_M10) || (type_ == Type::Meteomodem_M2K2))
return reader_bi_m.read(14 * 8, 32) / ((1ULL << 32) / 360.0);
//else if (type_ == Type::Vaisala_RS41_SG)
// return vaisala_descramble();
else
return 0; // Unknown
} }
float Packet::GPS_longitude() const { float Packet::GPS_longitude() const {
return reader_.read(18 * 8, 32) / ((1ULL << 32) / 360.0); if ((type_ == Type::Meteomodem_M10) || (type_ == Type::Meteomodem_M2K2))
return reader_bi_m.read(18 * 8, 32) / ((1ULL << 32) / 360.0);
else
return 0; // Unknown
} }
uint32_t Packet::battery_voltage() const { uint32_t Packet::battery_voltage() const {
return (reader_.read(69 * 8, 8) + (reader_.read(70 * 8, 8) << 8)) * 1000 / 150; if (type_ == Type::Meteomodem_M10)
return (reader_bi_m.read(69 * 8, 8) + (reader_bi_m.read(70 * 8, 8) << 8)) * 1000 / 150;
else if (type_ == Type::Meteomodem_M2K2)
return reader_bi_m.read(69 * 8, 8) * 66; // Actually 65.8
else
return 0; // Unknown
} }
std::string Packet::signature() const { std::string Packet::type_string() const {
const auto header = reader_.read(0, 24); switch (type_) {
case Type::Unknown: return "Unknown";
if (header == 0x649F20) case Type::Meteomodem_unknown: return "Meteomodem ???";
return "M10"; case Type::Meteomodem_M10: return "Meteomodem M10";
else if ((header == 0x648F20) || (header == 0x648F23)) case Type::Meteomodem_M2K2: return "Meteomodem M2K2";
return "M2K2"; case Type::Vaisala_RS41_SG: return "Vaisala RS41-SG";
else default: return "? 0x" + symbols_formatted().data.substr(0, 6);
return "0x" + symbols_formatted().data.substr(0, 6); }
} }
std::string Packet::serial_number() const { std::string Packet::serial_number() const {
if (type() == Type::M10) { if (type() == Type::Meteomodem_M10) {
// See https://github.com/rs1729/RS/blob/master/m10/m10x.c line 606 // See https://github.com/rs1729/RS/blob/master/m10/m10x.c line 606
// Starting at byte #93: 00000000 11111111 22222222 33333333 44444444 // Starting at byte #93: 00000000 11111111 22222222 33333333 44444444
// CCCC AAAABBBB // CCCC AAAABBBB
// 44444444 33333333 // 44444444 33333333
// DDDEEEEE EEEEEEEE // DDDEEEEE EEEEEEEE
return to_string_hex(reader_.read(93 * 8 + 16, 4), 1) + return to_string_hex(reader_bi_m.read(93 * 8 + 16, 4), 1) +
to_string_dec_uint(reader_.read(93 * 8 + 20, 4), 2, '0') + " " + to_string_dec_uint(reader_bi_m.read(93 * 8 + 20, 4), 2, '0') + " " +
to_string_hex(reader_.read(93 * 8 + 4, 4), 1) + " " + to_string_hex(reader_bi_m.read(93 * 8 + 4, 4), 1) + " " +
to_string_dec_uint(reader_.read(93 * 8 + 24, 3), 1) + to_string_dec_uint(reader_bi_m.read(93 * 8 + 24, 3), 1) +
to_string_dec_uint(reader_.read(93 * 8 + 27, 13), 4, '0'); to_string_dec_uint(reader_bi_m.read(93 * 8 + 27, 13), 4, '0');
} } else
return 0;
return 0;
} }
FormattedSymbols Packet::symbols_formatted() const { FormattedSymbols Packet::symbols_formatted() const {
@ -93,8 +137,8 @@ FormattedSymbols Packet::symbols_formatted() const {
bool Packet::crc_ok() const { bool Packet::crc_ok() const {
switch(type()) { switch(type()) {
case Type::M10: return crc_ok_M10(); case Type::Meteomodem_M10: return crc_ok_M10();
default: return false; default: return false;
} }
} }

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@ -36,18 +36,13 @@ class Packet {
public: public:
enum class Type : uint32_t { enum class Type : uint32_t {
Unknown = 0, Unknown = 0,
M10 = 1, Meteomodem_unknown = 1,
Meteomodem_M10 = 2,
Meteomodem_M2K2 = 3,
Vaisala_RS41_SG = 4,
}; };
Packet( Packet(const baseband::Packet& packet, const Type type);
const baseband::Packet& packet,
const Type type
) : packet_ { packet },
decoder_ { packet_ },
reader_ { decoder_ },
type_ { type }
{
}
size_t length() const; size_t length() const;
@ -56,24 +51,37 @@ public:
Timestamp received_at() const; Timestamp received_at() const;
Type type() const; Type type() const;
std::string type_string() const;
std::string serial_number() const; std::string serial_number() const;
uint32_t battery_voltage() const;
uint32_t GPS_altitude() const; uint32_t GPS_altitude() const;
float GPS_latitude() const; float GPS_latitude() const;
float GPS_longitude() const; float GPS_longitude() const;
std::string signature() const;
uint32_t battery_voltage() const;
FormattedSymbols symbols_formatted() const; FormattedSymbols symbols_formatted() const;
bool crc_ok() const; bool crc_ok() const;
private: private:
using Reader = FieldReader<BiphaseMDecoder, BitRemapNone>; static constexpr uint8_t vaisala_mask[64] = {
0x96, 0x83, 0x3E, 0x51, 0xB1, 0x49, 0x08, 0x98,
0x32, 0x05, 0x59, 0x0E, 0xF9, 0x44, 0xC6, 0x26,
0x21, 0x60, 0xC2, 0xEA, 0x79, 0x5D, 0x6D, 0xA1,
0x54, 0x69, 0x47, 0x0C, 0xDC, 0xE8, 0x5C, 0xF1,
0xF7, 0x76, 0x82, 0x7F, 0x07, 0x99, 0xA2, 0x2C,
0x93, 0x7C, 0x30, 0x63, 0xF5, 0x10, 0x2E, 0x61,
0xD0, 0xBC, 0xB4, 0xB6, 0x06, 0xAA, 0xF4, 0x23,
0x78, 0x6E, 0x3B, 0xAE, 0xBF, 0x7B, 0x4C, 0xC1
};
//uint8_t vaisala_descramble(const uint32_t pos);
const baseband::Packet packet_; const baseband::Packet packet_;
const BiphaseMDecoder decoder_; const BiphaseMDecoder decoder_;
const Reader reader_; const FieldReader<BiphaseMDecoder, BitRemapNone> reader_bi_m;
const Type type_; Type type_;
bool crc_ok_M10() const; bool crc_ok_M10() const;
}; };

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