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In to NXDN possible problem on sinc filter anc isinc filter, think they must be recalculated but do not know how to do it. On D-STAR, DMR, C4FM and P25 it work.
This commit is contained in:
LucaMarche IZ1MLT
2018-05-30 08:54:45 +02:00
committed by GitHub
parent 62f3e01aa5
commit 694b83123a
75 changed files with 7038 additions and 2324 deletions
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YSFRX.h
+24 -13
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@@ -1,5 +1,5 @@
/*
* Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
* Copyright (C) 2015,2016,2017 by Jonathan Naylor G4KLX
*
* 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
@@ -31,27 +31,38 @@ class CYSFRX {
public:
CYSFRX();
void samples(const q15_t* samples, uint8_t length);
void samples(const q15_t* samples, uint16_t* rssi, uint8_t length);
void reset();
private:
uint32_t m_pll;
bool m_prev;
YSFRX_STATE m_state;
uint32_t m_symbolBuffer;
uint64_t m_bitBuffer;
q15_t m_symbols[YSF_SYNC_LENGTH_SYMBOLS];
uint8_t m_outBuffer[YSF_FRAME_LENGTH_BYTES + 3U];
uint8_t* m_buffer;
uint16_t m_bufferPtr;
uint16_t m_symbolPtr;
uint32_t m_bitBuffer[YSF_RADIO_SYMBOL_LENGTH];
q15_t m_buffer[YSF_FRAME_LENGTH_SAMPLES];
uint16_t m_bitPtr;
uint16_t m_dataPtr;
uint16_t m_startPtr;
uint16_t m_endPtr;
uint16_t m_syncPtr;
uint16_t m_minSyncPtr;
uint16_t m_maxSyncPtr;
q31_t m_maxCorr;
uint16_t m_lostCount;
q15_t m_centre;
q15_t m_threshold;
uint8_t m_countdown;
q15_t m_centre[16U];
q15_t m_centreVal;
q15_t m_threshold[16U];
q15_t m_thresholdVal;
uint8_t m_averagePtr;
uint32_t m_rssiAccum;
uint16_t m_rssiCount;
void processNone(q15_t sample);
void processData(q15_t sample);
bool correlateSync();
void calculateLevels(uint16_t start, uint16_t count);
void samplesToBits(uint16_t start, uint16_t count, uint8_t* buffer, uint16_t offset, q15_t centre, q15_t threshold);
void writeRSSIData(uint8_t* data);
};
#endif