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kunlun/dtest/ada_test/inc/fft.h
2024-09-28 14:24:04 +08:00

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#ifndef __FFT_H__
#define __FFT_H__
typedef struct complex
{
float real;
float imag;
}complex;
#define PI 3.1415926535897932384626433832795028841971
void conjugate_complex(int n,complex in[],complex out[]);
void c_plus(complex a,complex b,complex *c);
void c_mul(complex a,complex b,complex *c);
void c_sub(complex a,complex b,complex *c);
void c_div(complex a,complex b,complex *c);
void fft(int N,complex f[]);
void ifft(int N,complex f[]);
void c_abs(complex f[],float out[],int n);
#endif