p404.m

天气雷达的地物杂波的模拟及其仿真

%program p404
S = fft(s,512);
SF = fft(sf,512);
w = (0:255)/256*(Fs/2);
plot(w,abs([S(1:256)' SF(1:256)']));
xlabel('Frequency (Hz)'); ylabel('Mag. of Fourier transform');
grid;
legend({'before','after'})