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- 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
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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.
-