Article View: comp.dsp
Article #671Re: Hilbert Transform (?)
From: David Kastrup
Date: Wed, 09 Sep 1992 15:32
Date: Wed, 09 Sep 1992 15:32
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frandsen@seismo.CSS.GOV (Marvin Vaun Frandsen) writes: >I too am interested in info on the theory and practice of Hilbert >transforms. I have seen contexts where the HT is used but would like >to understand what it does, and why, better. >--Marv Frandsen frandsen@beno.css.gov >-- >------------------------------------------------------------------- > Marvin Vaun Frandsen frandsen@beno.css.gov > It shifts any frequency components by 90 degree of phase. So if you have a clean sine signal of arbitrary phase, and add the square of it to the square of the Hilbert transform, you get a constant term with the mean energy of your original wave.
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Path: arc1-ca.pugleaf.net!sparky!uunet!noc.near.net!hri.com!spool.mu.edu!darwin.sura.net!Sirius.dfn.de!Urmel.Informatik.RWTH-Aachen.DE!kaa!dak From: dak@kaa.informatik.rwth-aachen.de (David Kastrup) Newsgroups: comp.dsp Subject: Re: Hilbert Transform (?) Message-ID: <dak.716052742@kaa> Date: 9 Sep 92 15:32:22 GMT References: <LcVHqB1w165w@precipice.chi.il.us> <51199@seismo.CSS.GOV> Sender: news@Urmel.Informatik.RWTH-Aachen.DE (Newsfiles Owner) Organization: Rechnerbetrieb Informatik / RWTH Aachen Lines: 16 Nntp-Posting-Host: kaa