不韋 呂
/
UIT2_ToAnalyticSignal
Transform real signal to analytic signal using Hilbert transform filter for ST Nucleo F401RE.
Diff: main.cpp
- Revision:
- 0:3d6eb7cd2ee1
- Child:
- 2:24161f77d925
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Thu Oct 23 00:37:00 2014 +0000 @@ -0,0 +1,40 @@ +//-------------------------------------------------------------- +// Analytic signal generator +// 2014/10/23, Copyright (c) 2014 MIKAMI, Naoki +//-------------------------------------------------------------- + +#include "mbed.h" + +#include "ADC_Base.hpp" // for ADC not using interrupt +#include "DAC_MCP4922Dual.hpp" // for DAC MCP4922 +#include "ScfClockTim3.hpp" // for clock supplied to SCF + +#include "HilbertTransform.hpp" // Hilbert transform filter +#include "coefsHilbert114.hpp" // Coeffisients of Hilbert transform filter +#include "DC_Cut_Coefficients.hpp" // Coeffisients of DC-cut filter +#include "Biquad.hpp" // For DC-cut filter + +using namespace Mikami; + +const int FS_ = 12000; // 12 kHz +ADC_Base adc_(A0, FS_); +DAC_MCP4922Dual myDac_; + +Hilbert<ORDER_> ht_(hm_); +Biquad DcCut_(c1_); // DC cut filter + +int main() +{ + while (true) + { + float xn = adc_.Read(); // Read from A0 + //----------------------------------------------- + + xn = DcCut_.Execute(g0_*xn); // DC cut filter + float yIn, yQn; + ht_.Execute(xn, yIn, yQn); // Hilbert transform filter + + //----------------------------------------------- + myDac_.Write(yIn, yQn); // Write to DAC + } +}