Complex valued signal simulation

Hi evereyone,

I have created codes to plot the cross correlation between two shifted signal as below.....But I want to create a complex-valued Matlab simulation and see the result....the codes below are only real-valued samples.

Could anyone advice how can I do it?

Thanks in advance.

• clear; clc; close all;
• fs = 5e3;
• fc = 100;
• time_vector = 0:1/fs:1;
• sig1 = sin(2*pi*fc*time_vector);
• sig2 = zeros(1,length(sig1));
• sig_tx = [sig1 sig2];
• figure(1)
• plot(sig_tx);
• sample_delay = 6e3; %change this value to observe correlator output for different amount of sample shifts
• sig_rx = circshift(sig_tx,sample_delay);
• figure(2)
• plot(sig_rx);
• r = xcorr(sig_tx,sig_rx);
• figure(3)
• plot(r);
• [~,I] = max(r);
• disp(I)

Answer 1

[Prachi Kulkarni]

Hi,

The function xcorr supports complex numbers as well. You can use it as it is for complex signals too.