FM/CW noise RADAR

Question

srinivasan ravi 2019-3-25

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/452337-fm-cw-noise-radar

回答： Patel Mounika 2019-4-1

hi i am trying to generate the white noise signal which i want to modulate using the sinusoidal wave for the radar-target application. I used fmmod() but i am confused is this right choise. I came across fskmod() for digital signals so which one of these method is better and what is the difference?

%%%%% generation of noise wave%%%%%%%%%%%
L=1000;
MU=0;%mean
sigma=2;%standard deviation
wgn=sigma*(randn(L,1))+MU; %noise signal
figure();
plot(wgn);
xlabel('sample');
ylabel('sample values');
grid on;
fd=50; %freq dev
radarsig=fmmod(wgn,1e9,9e9,fd);% modulation
figure();
plot(radarsig);
grid on;