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Add the EMB correlator for DMR.

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This commit is contained in:
Jonathan Naylor
2016-03-23 18:51:52 +00:00
parent 9e91a52793
commit 17f212db3b
3 changed files with 107 additions and 44 deletions
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DMRSlotRX.h
+25 -17
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@@ -22,6 +22,12 @@
#include "Config.h"
#include "DMRDefines.h"
enum DMRRX_STATE {
DMRRXS_NONE,
DMRRXS_VOICE,
DMRRXS_DATA
};
class CDMRSlotRX {
public:
CDMRSlotRX(bool slot);
@@ -36,24 +42,26 @@ public:
void reset();
private:
bool m_slot;
uint32_t m_bitBuffer[DMR_RADIO_SYMBOL_LENGTH];
q15_t m_buffer[900U];
uint16_t m_bitPtr;
uint16_t m_dataPtr;
uint16_t m_syncPtr;
uint16_t m_endPtr;
uint16_t m_delayPtr;
q31_t m_maxCorr;
q15_t m_centre;
q15_t m_threshold;
uint8_t m_control;
uint8_t m_syncCount;
uint8_t m_colorCode;
uint16_t m_delay;
uint8_t m_n;
bool m_slot;
uint32_t m_bitBuffer[DMR_RADIO_SYMBOL_LENGTH];
q15_t m_buffer[900U];
uint16_t m_bitPtr;
uint16_t m_dataPtr;
uint16_t m_syncPtr;
uint16_t m_endPtr;
uint16_t m_delayPtr;
q31_t m_maxCorr;
q15_t m_centre;
q15_t m_threshold;
uint8_t m_control;
uint8_t m_syncCount;
uint8_t m_colorCode;
uint16_t m_delay;
DMRRX_STATE m_state;
uint8_t m_n;
void correlateSync(q15_t sample);
void correlateSync();
void correlateEMB();
void samplesToBits(uint16_t start, uint8_t count, uint8_t* buffer, uint16_t offset, q15_t centre, q15_t threshold);
};