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From: fogelberg@lne.kth.se (Ingemar Fogelberg SM0AJV)
Newsgroups: comp.dsp
Subject: Re: Hilbert Transformer
Message-ID: <009393DB.39496A60@lne.kth.se>
Date: 5 Jul 90 21:59:22 GMT
References: <267ADD3E.18081@maccs.dcss.mcmaster.ca>
Sender: news@kth.se  (News Administrator)
Reply-To: fogelberg@lne.kth.se (Ingemar Fogelberg SM0AJV)
Organization: KTH School of E.E.
Lines: 36

In article <267ADD3E.18081@maccs.dcss.mcmaster.ca>, darel@maccs.dcss.mcmaster.ca (Darel Mesher) writes:
>
>  Hello;
>
>  I was wondering if anyone has a reference to an analog implementation
>of a Hilbert transformer (ie. 90 degree phase shift). I also need
>a digital implementation but that should be fairly easy to find 
>(Oppenheimer/Schafer).
>
>Thanks in advance for any leads;
>
>  Darel
>
>
>-- 
>=============================================================================
>Darel Mesher			
>Electrical and Computer Engineering
>McMaster University			    darel@maccs.dcss.mcmaster.ca

In "Introduction to Digital Signal Processing" by Manolakis & Proakis 
chapter 8.1.5 you will find a very good description on how to make 
DIGITAL Hilbert Transformers. I have used it as reference my self.

MATLAB (from Mathworks) have a routine called REMEZ were you easily can 
design a FIR-filter wich approximate the Hilbert-transformer. In my 
application I used the filter in a Quadratur-modulator used to perform
a exp(-jw) multiplication.

Good Luck
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