www.gusucode.com > 调制识别 基于决策论的通信信号调制识别实现matlab源码程序 > moulation classification/classification rate simulink/fsk2.m
function[s] = fsk2(d,fb,f1,f2,fs,Ac) %clear;d=randint(1,10,2);fb=500;f1=500;f2=2000;Ac=1;fs=12000; N=length(d);%N=size(d,2);%N = number of data bits. M=fs/fb;%M = number of samples per bit duration. tb=1/fb;tm=1/f1;ts=1/f2; Nm=floor(M*tm/tb); %Nm = number of samples per mark period. Ns=floor(M*ts/tb); %Ns = number of samples per space period. for j = 1:N if d(j) == 1 for i = 1:M s((j-1)*M+i)=Ac*cos(2*pi*(i-1)/Ns); end else for i = 1:M s((j-1)*M+i)=Ac*cos(2*pi*(i-1)/Nm); end end end