www.pudn.com > radarsignalprocessing.zip > 双延迟对消器频响图.m, change:2013-07-29,size:554b

clc; 
fofr1=3; 
% function [resp] = double_canceler(fofr1) 
eps = 0.00001; 
fofr = 0:0.01:fofr1; 
arg1 = pi .* fofr; 
resp = 4.0 .* ((sin(arg1)).^2); 
max1 = max(resp); 
resp = resp ./ max1; 
resp2 = resp .* resp; 
subplot(2,1,1); 
plot(fofr,resp,'b--',fofr, resp2,'k'); 
ylabel ('Amplitude response - Volts') 
resp2 = 20. .* log10(resp2+eps); 
resp1 = 20. .* log10(resp+eps); 
subplot(2,1,2) 
plot(fofr,resp1,'b--',fofr,resp2,'k'); 
legend ('single canceler','double canceler') 
xlabel ('Normalized frequency f/fr') 
ylabel ('Amplitude response - dB')