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How to use periodogram in Matlab ?

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Holgi

Electrical
Joined
Feb 7, 2003
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2
Location
DE
Hi !!

I try to analyse a Buetooth signal with a periodogram.
How are the values of the periodogram normalized ?
How does this values depends on the sample frequency ?

Thanks

Holgi

 
These are not Matlab questions?

Search the web for Bluetooth and your questions.
 
Hi !!!
My Problem ist not ne Bluetooth singnal, my problem is matlab and the periodogram function. How to use it...


Holgi
 
Hi Holgi, have you read the Matlab help file about the periodogram function? Do you understand that this is a statistics function?

More info = more help.
 
Type "help psd". It gives information about the scaling in the help file.

M
 
hi, it is a little bit tricky when one is going to use this periodogram function. For example, if your signal has a 1000Hz sampling frequency, you will have to present the time-frequency map produced by periodogram function within [0, 500]Hz according to Nyquist theorem. However, periodogram function gives you a time-frequency representation within [0, 1000]Hz. So, you will have to cut it so as to get what is useful. For details, please check the matlab help file. I could not remember exactly at this time. But I did use this function for a quite long time. Good luck!
 
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