常用的數字信號的產生
1. 均勻分布的隨機數

#include <stdio.h>/*產生a,b區間隨機分布的隨機數*/ 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; }

函數的輸出結果：

/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

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