代码搜索:FFt 有哪些应用?
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dpr fft.dpr
{ **************************************************************************** }
{ FileName............: FFT.PAS }
{ Project.............: FFT
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c fft.c
/*
* FFT/IFFT transforms
* Copyright (c) 2002 Fabrice Bellard.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* Li
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asm fft.asm
*************************************
*Radix-2,DIT,Real-input FFT Program *
* fft.asm *
*************************************
.mmregs
.global sav_sin,sav_idx,sav_gr
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c fft.c
//FFT.c C callable FFT function in C
#define PTS 256 //# of points for FFT
typedef struct {float real,imag;} COMPLEX;
extern COMPLEX w[PTS]; //twiddle constants stored in w
v
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m fft.m
function Y = fft(X,varargin)
% $Id: fft.m 53 2005-01-05 11:17:56Z mairas $
y = fft(X.s,varargin{:});
Y = spectrum(y,X.time.fs);
%warning('time data discarded');
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c fft.c
/*
* fft.c
*
* Version 2.6 by Steve Sampson, Public Domain, November 1988
*
* This program produces a Frequency Domain display from the Time Domain
* data input; using the Fast Fourier Transform
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c fft.c
/* fft.c -- in-place decimation-in-time FFT */
#include
void shuffle(), dftmerge();
void fft(N, X)
complex *X;
int N;
{
shuffle(N, X);
dftmerge(N, X);
}
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sbl fft.sbl
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c fft.c
//TMS320LF2407上实现快速傅里叶变换(FFT)
//FFT的程序代码
//(1)主程序
#include "f2407_c.h"
#include "math.h"
#define N 32 // FFT变换的点数
extern void fft(void);
extern void
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pjt fft.pjt
; Code Composer Project File, Version 2.0 (do not modify or remove this line)
[Project Settings]
ProjectDir="E:\2407\fft\"
ProjectType=Executable
CPUFamily=TMS320C24XX
Tool="Compiler"
Tool="Cu