//determine the nyquist rate //example 8_1 clc; clear all; //x(t)=cos3(200*pi*t) //cos3(t)=1/4[3cos(t)+cos(3t)] //cos3(t)=3/4[cos(200)+1/4cos(600)] wq=600; wp=200; wf=0; if wp>=wq then wf=wp; else wf=wq; end F1=wf/2; Fs=2*F1; disp('Nyquist Rate='); disp(Fs);