How can I generate signals with in Maltab?

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

Answer 1

[Youssef Khmou]

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,

Answer 2

[Azzi Abdelmalek]

Use

idinput

gensig