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Help regarding Freq Domain Equalizer?

 
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bee



Joined: 29 Nov 2003
Posts: 126
Helped: 2
Post20 Sep 2007 1:54   Help regarding Freq Domain Equalizer?
Can any one plz explain me what Freq Domain Equalizers are and how they work?

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ivar4ever



Joined: 12 Jun 2006
Posts: 308
Helped: 72
Location: India
Post20 Sep 2007 2:15   Re: Help regarding Freq Domain Equalizer?
this may be of some help
http://www.mathworks.com/support/solutions/data/1-1U9QOJ.html?product=CB&solution=1-1U9QOJ
of course this is for the Frequency Domain Equalizer in Simulink, but still you will get an idea of what they do.
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bee



Joined: 29 Nov 2003
Posts: 126
Helped: 2
Post20 Sep 2007 4:17   Help regarding Freq Domain Equalizer?
thanks allot but i am not yet cleared by the txt in the link, could u or any one plz tell me more abt it
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rag_perfect



Joined: 01 Sep 2005
Posts: 150
Helped: 7
Location: India
Post29 Sep 2007 10:31   Re: Help regarding Freq Domain Equalizer?
check it out...

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anoop_ha



Joined: 15 Nov 2007
Posts: 7
Helped: 3
Post29 Nov 2007 9:06   Help regarding Freq Domain Equalizer?
The underlying philosophy of both time domain and frequency domain equalizers are the same - to equalize the channel frequency response, but the latter achieves the job in the frequency domain.

In a frequency domain equalized system the reference signal (pilot) is usually sent in the frequency domain and is used to estimate the channel frequency response, which in turn will be used to equalize the received data.
But, in a Time domain equalized system the pilot will be sent in the time domain and the Channel Impulse response will be estimated and used to equalize the received data
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hankpher



Joined: 12 Jun 2007
Posts: 2
Post07 Mar 2008 15:07   Help regarding Freq Domain Equalizer?
time domain equalization: equalize in the time domain, by cofficients.

freq domain equalization: transform to freq domain first, then equalize, at last change back to time domain
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mmoctar



Joined: 12 Feb 2007
Posts: 84
Helped: 6
Location: France
Post11 Mar 2008 15:06   Re: Help regarding Freq Domain Equalizer?
http://pastel.paristech.org/3283/01/These-Sadough.pdf
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