mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-12-15 02:34:33 -05:00
89 lines
2.7 KiB
C++
89 lines
2.7 KiB
C++
/*
|
|
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
|
|
*
|
|
* This file is part of PortaPack.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef __PROC_AIS_H__
|
|
#define __PROC_AIS_H__
|
|
|
|
#include "baseband_processor.hpp"
|
|
#include "baseband_thread.hpp"
|
|
#include "rssi_thread.hpp"
|
|
|
|
#include "channel_decimator.hpp"
|
|
#include "matched_filter.hpp"
|
|
|
|
#include "clock_recovery.hpp"
|
|
#include "symbol_coding.hpp"
|
|
#include "packet_builder.hpp"
|
|
#include "baseband_packet.hpp"
|
|
|
|
#include "message.hpp"
|
|
|
|
#include <cstdint>
|
|
#include <cstddef>
|
|
#include <bitset>
|
|
|
|
#include "ais_baseband.hpp"
|
|
|
|
class AISProcessor : public BasebandProcessor {
|
|
public:
|
|
AISProcessor();
|
|
|
|
void execute(const buffer_c8_t& buffer) override;
|
|
|
|
private:
|
|
static constexpr size_t baseband_fs = 2457600;
|
|
|
|
std::array<complex16_t, 512> dst{};
|
|
const buffer_c16_t dst_buffer{
|
|
dst.data(),
|
|
dst.size()};
|
|
|
|
dsp::decimate::FIRC8xR16x24FS4Decim8 decim_0{};
|
|
dsp::decimate::FIRC16xR16x32Decim8 decim_1{};
|
|
dsp::matched_filter::MatchedFilter mf{baseband::ais::square_taps_38k4_1t_p, 2};
|
|
|
|
clock_recovery::ClockRecovery<clock_recovery::FixedErrorFilter> clock_recovery{
|
|
19200,
|
|
9600,
|
|
{0.0555f},
|
|
[this](const float symbol) { this->consume_symbol(symbol); }};
|
|
symbol_coding::NRZIDecoder nrzi_decode{};
|
|
PacketBuilder<BitPattern, BitPattern, BitPattern> packet_builder{
|
|
{0b0101010101111110, 16, 1},
|
|
{0b111110, 6},
|
|
{0b01111110, 8},
|
|
[this](const baseband::Packet& packet) {
|
|
this->payload_handler(packet);
|
|
}};
|
|
|
|
void consume_symbol(const float symbol);
|
|
void payload_handler(const baseband::Packet& packet);
|
|
void on_message(const Message* const message);
|
|
void on_beep_message(const AudioBeepMessage& message);
|
|
|
|
/* NB: Threads should be the last members in the class definition. */
|
|
BasebandThread baseband_thread{
|
|
baseband_fs, this, baseband::Direction::Receive, /*auto_start*/ false};
|
|
RSSIThread rssi_thread{};
|
|
};
|
|
|
|
#endif /*__PROC_AIS_H__*/
|