psk.c

DSP实验中用ccs 2实现对一段指定信号的PSK和ASK编码

#include <math.h>

#define PI 3.1415926

int serial[] = {0,1,1,0,1,0,1,1,1,0};

void singen(double* data,int frequency, int time, int sample, int status)
{
	int i = 0;
	int j = 0;
	if(status==1)
		for(i=0;i<10;i++)
			for(j=0;j<sample*time;j++)
			{
				if(serial[i] == 0)
					data[i*sample*time+j]= -sin(2*PI*frequency*j/sample);
				else
					data[i*sample*time+j]= sin(2*PI*frequency*j/sample);
			}
	else
		for(i=0;i<10;i++)
			for(j=0;j<sample*time;j++)
			{
				if(serial[i] == 0)
					data[i*sample*time+j]= 0;
				else
					data[i*sample*time+j]= sin(2*PI*frequency*j/sample);
			}
	
	return;
}


void main()
{	
	double psk[500];
	double ask[500];
	singen(psk,2,1,50,1);
	singen(ask,2,1,50,2);
	return;
}