常用的數(shù)字信號的產(chǎn)生
1. 均勻分布的隨機數(shù)

#include <stdio.h>/*產(chǎn)生a,b區(qū)間隨機分布的隨機數(shù)*/ double uniform(double a,double b, long int * seed);int main() {double a,b,x;int i,j;long int s;a =0.0;b = 1.0;s = 13579;for(i =0; i < 10; i++){for(j = 0;j < 5; j++){x =uniform(a,b,&s);printf("%13.7f",x);}printf("\n");}return 0; }double uniform(double a,double b, long int * seed) {double t;*seed = 2045 * (*seed) + 1;*seed = *seed - (*seed/1048576)*1048576;t = (*seed)/1048576.0;t = a+(b-a)*t;return t; }

函數(shù)的輸出結(jié)果：

/home/andrew/文檔/moniter_data/cmake-build-debug/moniter_data0.4826355 0.9895945 0.7206707 0.7715826 0.88642500.7391634 0.5891514 0.8145781 0.8121262 0.79799750.9048367 0.3909597 0.5126686 0.4073076 0.94409370.6716261 0.4753571 0.1051798 0.0926647 0.49935050.1718712 0.4765749 0.5956669 0.1387815 0.80826570.9033289 0.3075924 0.0264425 0.0749702 0.31415270.4423084 0.5207319 0.8967896 0.9346323 0.32305720.6519232 0.1829033 0.0372286 0.1324558 0.87216470.5768661 0.6912775 0.6624966 0.8054800 0.20660780.5129900 0.0645466 0.9977674 0.4344330 0.4154520Process finished with exit code 0

總結(jié)

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