不韋 呂
/
UIT2_ToAnalyticSignal
Transform real signal to analytic signal using Hilbert transform filter for ST Nucleo F401RE.
main.cpp@0:3d6eb7cd2ee1, 2014-10-23 (annotated)
- Committer:
- MikamiUitOpen
- Date:
- Thu Oct 23 00:37:00 2014 +0000
- Revision:
- 0:3d6eb7cd2ee1
- Child:
- 2:24161f77d925
1
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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MikamiUitOpen | 0:3d6eb7cd2ee1 | 1 | //-------------------------------------------------------------- |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 2 | // Analytic signal generator |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 3 | // 2014/10/23, Copyright (c) 2014 MIKAMI, Naoki |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 4 | //-------------------------------------------------------------- |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 5 | |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 6 | #include "mbed.h" |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 7 | |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 8 | #include "ADC_Base.hpp" // for ADC not using interrupt |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 9 | #include "DAC_MCP4922Dual.hpp" // for DAC MCP4922 |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 10 | #include "ScfClockTim3.hpp" // for clock supplied to SCF |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 11 | |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 12 | #include "HilbertTransform.hpp" // Hilbert transform filter |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 13 | #include "coefsHilbert114.hpp" // Coeffisients of Hilbert transform filter |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 14 | #include "DC_Cut_Coefficients.hpp" // Coeffisients of DC-cut filter |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 15 | #include "Biquad.hpp" // For DC-cut filter |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 16 | |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 17 | using namespace Mikami; |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 18 | |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 19 | const int FS_ = 12000; // 12 kHz |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 20 | ADC_Base adc_(A0, FS_); |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 21 | DAC_MCP4922Dual myDac_; |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 22 | |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 23 | Hilbert<ORDER_> ht_(hm_); |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 24 | Biquad DcCut_(c1_); // DC cut filter |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 25 | |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 26 | int main() |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 27 | { |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 28 | while (true) |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 29 | { |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 30 | float xn = adc_.Read(); // Read from A0 |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 31 | //----------------------------------------------- |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 32 | |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 33 | xn = DcCut_.Execute(g0_*xn); // DC cut filter |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 34 | float yIn, yQn; |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 35 | ht_.Execute(xn, yIn, yQn); // Hilbert transform filter |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 36 | |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 37 | //----------------------------------------------- |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 38 | myDac_.Write(yIn, yQn); // Write to DAC |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 39 | } |
MikamiUitOpen | 0:3d6eb7cd2ee1 | 40 | } |