HW5S - ps5.m clear all; close all; % Simulates a single...

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ps5.m clear all; close all; % Simulates a single pulse delay line canceler MTI radar prf=???; % Radar prf (Hz) cstd=100; % Standard deviation of clutter Doppler spectrum (Hz) fd=450; % Target doppler shift (Hz) N=1024; % # of pulses to use in simulation : No need to change SCR=10; % Initial signal to clutter ratio (dB) : No need to change reals=1000; % Number of realizations to average over: No need to change wd=2*pi*fd; df=prf/N; F(1:N/2+1)=(0:N/2)*df; F(N/2+2:N)=-F(N+2-((N/2+2):N)); for ir=1:reals % Generate clutter fields as function of time with Gaussian spectrum for i=1:N/2+1 z(i)=(randn+j*randn)/sqrt(2)*exp(-F(i)^2/4./cstd^2); end z(N/2+2:N)=conj(z(N+2-((N/2+2):N))); z(1)=0; z(N/2+1)=0; clut=ifft(z); % Compute mean power due to clutter RCS=abs(clut).^2; mRCS=mean(RCS); % Generate signal fields given doppler shift t=0; for i=1:N s(i)=sin(wd*t); t=t+1/prf; end % Scale signal power to have specified SCR s=s*sqrt(2)*sqrt(mRCS*10.^(SCR/10)); % Pass through single delay line canceler i1=1;
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This note was uploaded on 10/28/2009 for the course ECE 714 taught by Professor Johnson,j during the Spring '08 term at Ohio State.

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HW5S - ps5.m clear all; close all; % Simulates a single...

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