fft spectral analysis in mat lab

[suryakiran]

I am new to mat lab i had the signal and have to write the code for it
and i want peak values in a diagram
please help me...

 

[MikuIyer]

Hi,

Set the range for 'n' (as we are in discrete time domain), say n = [0:100]
Compute values for the given signal x[n] in the above taken range.

For spectral analysis, compute fft using fft(signal, N) and plot the abs value to get magnitude spectrum.
Let me know if you need the code.