fwt.h

来自「Walsh Hadamar Transform CDMA2」· C头文件 代码 · 共 12 行

/*
Fast Walsh Transform
x - pointer to data
n = number of data points - order of FWT 
(should be equal to power of 2:  4,8,16,32 etc.)

only integer calculations are used, no mul/div operations used
*/

void FWT(int *x, int n);