不韋 呂 / Mbed 2 deprecated F746_SpectralAnalysis_NoPhoto

No photo version of "F746_SpectralAnalysis_Example".

Dependencies:   BSP_DISCO_F746NG BUTTON_GROUP LCD_DISCO_F746NG TS_DISCO_F746NG UIT_FFT_Real mbed

SpactrumAnalysisClasses/LPC_Analysis.hpp@0:9d7f931c704a, 2015-11-24 (annotated)

Committer:
MikamiUitOpen
Date:
Tue Nov 24 12:34:55 2015 +0000
Revision:
0:9d7f931c704a
1

Who changed what in which revision?

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MikamiUitOpen 0:9d7f931c704a 1 //---------------------------------------------------------------
MikamiUitOpen 0:9d7f931c704a 2 // Class for spectrum analysis using linear prediction (Header)
MikamiUitOpen 0:9d7f931c704a 3 // Copyright (c) 2014 MIKAMI, Naoki, 2014/12/30
MikamiUitOpen 0:9d7f931c704a 4 //---------------------------------------------------------------
MikamiUitOpen 0:9d7f931c704a 5
MikamiUitOpen 0:9d7f931c704a 6 #ifndef LPC_ANALYZER_HPP
MikamiUitOpen 0:9d7f931c704a 7 #define LPC_ANALYZER_HPP
MikamiUitOpen 0:9d7f931c704a 8
MikamiUitOpen 0:9d7f931c704a 9 #include "fftReal.hpp"
MikamiUitOpen 0:9d7f931c704a 10 #include "Hamming.hpp"
MikamiUitOpen 0:9d7f931c704a 11 #include "LinearPrediction.hpp"
MikamiUitOpen 0:9d7f931c704a 12
MikamiUitOpen 0:9d7f931c704a 13 namespace Mikami
MikamiUitOpen 0:9d7f931c704a 14 {
MikamiUitOpen 0:9d7f931c704a 15 class LpcAnalyzer
MikamiUitOpen 0:9d7f931c704a 16 {
MikamiUitOpen 0:9d7f931c704a 17 public:
MikamiUitOpen 0:9d7f931c704a 18 LpcAnalyzer(int nData, int order, int nFft);
MikamiUitOpen 0:9d7f931c704a 19 ~LpcAnalyzer();
MikamiUitOpen 0:9d7f931c704a 20 void Execute(float xn[], float db[]);
MikamiUitOpen 0:9d7f931c704a 21 private:
MikamiUitOpen 0:9d7f931c704a 22 const int N_DATA_;
MikamiUitOpen 0:9d7f931c704a 23 const int ORDER_;
MikamiUitOpen 0:9d7f931c704a 24 const int N_FFT_;
MikamiUitOpen 0:9d7f931c704a 25
MikamiUitOpen 0:9d7f931c704a 26 HammingWindow hm_;
MikamiUitOpen 0:9d7f931c704a 27 LinearPred lp_;
MikamiUitOpen 0:9d7f931c704a 28 FftReal fft_;
MikamiUitOpen 0:9d7f931c704a 29
MikamiUitOpen 0:9d7f931c704a 30 float* xData_; // Data to be analyzed
MikamiUitOpen 0:9d7f931c704a 31 float* an_;
MikamiUitOpen 0:9d7f931c704a 32 float* xFft_; // Input for FFT
MikamiUitOpen 0:9d7f931c704a 33 Complex* yFft_; // Output of FFT
MikamiUitOpen 0:9d7f931c704a 34 float* normY_; // Powerspectrum
MikamiUitOpen 0:9d7f931c704a 35
MikamiUitOpen 0:9d7f931c704a 36 float Sqr(float x) { return x*x; }
MikamiUitOpen 0:9d7f931c704a 37 };
MikamiUitOpen 0:9d7f931c704a 38 }
MikamiUitOpen 0:9d7f931c704a 39 #endif // LPC_ANALYZER_HPP
MikamiUitOpen 0:9d7f931c704a 40