portapack-mayhem/firmware/baseband/proc_ais.hpp

70 lines
2.0 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 "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:
void execute(buffer_c8_t& buffer) override;
private:
ChannelDecimator decimator { ChannelDecimator::DecimationFactor::By32 };
dsp::matched_filter::MatchedFilter mf { baseband::ais::rrc_taps_76k8_4t_p, 4 };
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);
};
#endif/*__PROC_AIS_H__*/