wav_gener.m

DTMF编解码在MATLAB中的仿真（gui设计）

%wav_gener.m
function h=wav_gener(R,omega,N)
w1=0;  
w2=0;  
delta=zeros(1,N);  
delta(1)=1;
k=R*cos(omega);
h=zeros(1,N);
for  n=1:N
    w0=delta(n)+2*k*w1-R^2*w2;
    h(n)=w0-k*w1;
    w2=w1;
    w1=w0;
    
end