fft.h

来自「完整的OFDM系统,含Matlab仿真代码和DSP源代码下载.平台Tms320C」· C头文件 代码 · 共 24 行

//fft.h
//
// Project Red 2002: High Performance OFDM Modem 
// Against Channel Imperfections
// Auther: Linus Falk
#include "ofdm.h"

//extern float dft[N];	/* Number of coefficients needed for the DFT routine is N */
extern float idft[N];	/* Number of coefficients needed for the IDFT routine is N */

extern const short index[n];

#define TRUE	1
#define FALSE	0

//void signal_process(short *, short *);
void digitrev_index(const short *, int, int);	
void bitrev(volatile float *, const short *, int);
void cfftr2_dit(volatile float *, const float *, short);
//void fft(volatile float signal[]);
void ifft(float signal[]);
void init_fft(void);