Driver for the SX1280 RF Transceiver
Dependents: SX1280PingPong RangignMaster RangingSlave MSNV2-Terminal_V1-6 ... more
RangingCorrection.cpp
- Committer:
- mverdy
- Date:
- 2018-11-08
- Revision:
- 12:c4f110f3fe3e
File content as of revision 12:c4f110f3fe3e:
#include "RangingCorrection.h" #include "rangingCorrection/rangingCorrectionSF5BW0400.h" #include "rangingCorrection/rangingCorrectionSF6BW0400.h" #include "rangingCorrection/rangingCorrectionSF7BW0400.h" #include "rangingCorrection/rangingCorrectionSF8BW0400.h" #include "rangingCorrection/rangingCorrectionSF9BW0400.h" #include "rangingCorrection/rangingCorrectionSF10BW0400.h" #include "rangingCorrection/rangingCorrectionSF5BW0800.h" #include "rangingCorrection/rangingCorrectionSF6BW0800.h" #include "rangingCorrection/rangingCorrectionSF7BW0800.h" #include "rangingCorrection/rangingCorrectionSF8BW0800.h" #include "rangingCorrection/rangingCorrectionSF9BW0800.h" #include "rangingCorrection/rangingCorrectionSF10BW0800.h" #include "rangingCorrection/rangingCorrectionSF5BW1600.h" #include "rangingCorrection/rangingCorrectionSF6BW1600.h" #include "rangingCorrection/rangingCorrectionSF7BW1600.h" #include "rangingCorrection/rangingCorrectionSF8BW1600.h" #include "rangingCorrection/rangingCorrectionSF9BW1600.h" #include "rangingCorrection/rangingCorrectionSF10BW1600.h" const double* RangingCorrectionPerSfBwGain[6][3] = { { &RangingCorrectionSF5BW0400[0], &RangingCorrectionSF5BW0800[0], &RangingCorrectionSF5BW1600[0] }, { &RangingCorrectionSF6BW0400[0], &RangingCorrectionSF6BW0800[0], &RangingCorrectionSF6BW1600[0] }, { &RangingCorrectionSF7BW0400[0], &RangingCorrectionSF7BW0800[0], &RangingCorrectionSF7BW1600[0] }, { &RangingCorrectionSF8BW0400[0], &RangingCorrectionSF8BW0800[0], &RangingCorrectionSF8BW1600[0] }, { &RangingCorrectionSF9BW0400[0], &RangingCorrectionSF9BW0800[0], &RangingCorrectionSF9BW1600[0] }, { &RangingCorrectionSF10BW0400[0], &RangingCorrectionSF10BW0800[0], &RangingCorrectionSF10BW1600[0] }, }; const RangingCorrectionPolynomes_t* RangingCorrectionPolynomesPerSfBw[6][3] = { { &correctionRangingPolynomeSF5BW0400, &correctionRangingPolynomeSF5BW0800, &correctionRangingPolynomeSF5BW1600 }, { &correctionRangingPolynomeSF6BW0400, &correctionRangingPolynomeSF6BW0800, &correctionRangingPolynomeSF6BW1600 }, { &correctionRangingPolynomeSF7BW0400, &correctionRangingPolynomeSF7BW0800, &correctionRangingPolynomeSF7BW1600 }, { &correctionRangingPolynomeSF8BW0400, &correctionRangingPolynomeSF8BW0800, &correctionRangingPolynomeSF8BW1600 }, { &correctionRangingPolynomeSF9BW0400, &correctionRangingPolynomeSF9BW0800, &correctionRangingPolynomeSF9BW1600 }, { &correctionRangingPolynomeSF10BW0400, &correctionRangingPolynomeSF10BW0800, &correctionRangingPolynomeSF10BW1600 }, }; double Sx1280RangingCorrection::GetRangingCorrectionPerSfBwGain( const RadioLoRaSpreadingFactors_t sf, const RadioLoRaBandwidths_t bw, const int8_t gain){ uint8_t sf_index, bw_index; switch(sf){ case LORA_SF5: sf_index = 0; break; case LORA_SF6: sf_index = 1; break; case LORA_SF7: sf_index = 2; break; case LORA_SF8: sf_index = 3; break; case LORA_SF9: sf_index = 4; break; case LORA_SF10: sf_index = 5; break; } switch(bw){ case LORA_BW_0400: bw_index = 0; break; case LORA_BW_0800: bw_index = 1; break; case LORA_BW_1600: bw_index = 2; break; } double correction = RangingCorrectionPerSfBwGain[sf_index][bw_index][gain]; return correction; } double Sx1280RangingCorrection::ComputeRangingCorrectionPolynome(const RadioLoRaSpreadingFactors_t sf, const RadioLoRaBandwidths_t bw, const double median){ uint8_t sf_index, bw_index; switch(sf){ case LORA_SF5: sf_index = 0; break; case LORA_SF6: sf_index = 1; break; case LORA_SF7: sf_index = 2; break; case LORA_SF8: sf_index = 3; break; case LORA_SF9: sf_index = 4; break; case LORA_SF10: sf_index = 5; break; } switch(bw){ case LORA_BW_0400: bw_index = 0; break; case LORA_BW_0800: bw_index = 1; break; case LORA_BW_1600: bw_index = 2; break; } const RangingCorrectionPolynomes_t *polynome = RangingCorrectionPolynomesPerSfBw[sf_index][bw_index]; double correctedValue = 0.0; double correctionCoeff = 0; for(uint8_t order = 0; order < polynome->order; order++){ correctionCoeff = polynome->coefficients[order] * pow(median, polynome->order - order - 1); correctedValue += correctionCoeff; } return correctedValue; }