Do you have to compensate the filters group delay?

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shameem

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filter group delay

hi,
i am working on the synchronisation of wireless ofdm system. i have used a low pass filter with group delay of 26. I want to know if i have to compensate the group delay in the time offset calculation for the positioning of the fft window.
if anybody know, please help me.
 

filter group delay

Hi,

Note that grd is't a constant but it vary by frequency specially in a wide band communication.
for compensation I suggest you to use equalizer instead of simplly calculating group delay.

regards
 

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