不韋 呂
Spectrum analyzer using DISCO-F746NG. Spectrum is calculated by FFT or linear prediction. The vowel data is in "vowel_data.hpp"
Dependencies: BSP_DISCO_F746NG LCD_DISCO_F746NG TS_DISCO_F746NG UIT_FFT_Real mbed BUTTON_GROUP
Diff: SpactrumAnalysisClasses/LinearPrediction.hpp
- Revision:
- 0:c35b8a23a863
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/SpactrumAnalysisClasses/LinearPrediction.hpp Mon Oct 26 08:06:57 2015 +0000
@@ -0,0 +1,31 @@
+//-----------------------------------------------------
+// Class for linear prediction (Header)
+// Copyright (c) 2014 MIKAMI, Naoki, 2014/12/30
+//-----------------------------------------------------
+
+#ifndef LINEAR_PREDICTION_HPP
+#define LINEAR_PREDICTION_HPP
+
+#include "mbed.h"
+
+namespace Mikami
+{
+ class LinearPred
+ {
+ public:
+ LinearPred(int nData, int order);
+ ~LinearPred();
+ bool Execute(const float x[], float a[], float &em);
+ public:
+ const uint16_t N_DATA_;
+ const uint16_t ORDER_;
+
+ float* r_;
+ float* k_;
+ float* am_;
+
+ void AutoCorr(const float x[]);
+ bool Durbin(float a[], float &em);
+ };
+}
+#endif // LINEAR_PREDICTION_HPP