Why do we do spectral estimation

Status
Not open for further replies.

SanjKrish

Member level 3
Joined
Feb 6, 2011
Messages
67
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,288
Location
India
Visit site
Activity points
1,855
Hi all,
There are various methods through which we estimate spectrum of a random signal like parametric and non parametric methods. But when I googled as for why we do spectrum estimation I don't get any answers.
Can anybody tell me some instances which you would have come across for which u needed to estimate the spectrum of your signal of interest.

What does it provide which time domain doesn't provide.
 

It provides frequency components of random signal.
'Random signal' could be some sort of information signal covered in deep noise (or its just not white noise etc.), so time parametric method would miss it.
 
Status
Not open for further replies.
Cookies are required to use this site. You must accept them to continue using the site. Learn more…