MATLAB: How to generate signals with in Maltab

MATLABsignal processing

I would like to generate some signals like Wideband Gaussian, Bandlimited noise, narrow band noise, Sine Wave Plus Gaussian with matlab. Which functions or codes are used for that? Thanks

Best Answer

hi,
1)Concerning Wideband Gaussian signal, you can pick up a Generalized Gaussian Pulse:
 alpha=10;
 E0=1;
 Fs=100e+6;
 t=0:1/Fs:2e-3; % SIMULATION OF 2 MILLISECONDS
 DT=5e-6;
 t0=0.5e-3;
 I1= (E0/(1-alpha));
 I2=exp(-4*pi*((t-t0)/DT).^2);
 I3=alpha*exp(-4*pi*alpha^2*((t-t0)/DT).^2);
 y=I1*(I2-I3);
2)Sin narrow band waves are easy to implement using 'sin''cos' functions , and sin wideband signals are generated using 'chirp' signals, type
 >>doc chirp
3) Band limited noise can be generated using 'randn' function followed by bandpass filter,
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