fftseq.m

实现FSK调制实现FSK调制实现FSK调制

function[M,m,df] = fftseq(m,tz,df)
fz = 1/tz;
if nargin == 2
    n1 = 0;
else n1 = fz/df;
end
n2 = length(m);
n = 2^(max(nextpow2(n1),nextpow2(n2)));
M = fft(m,n);
m = [m,zeros(1,n-n2)];