Article View: comp.dsp
Article #775Re: Reed Solomon Decoders
From: Mike Tankenson
Date: Fri, 13 Apr 1990 20:58
Date: Fri, 13 Apr 1990 20:58
31 lines
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1852 bytes
In article <12707@mcdphx.phx.mcd.mot.com> hbg6@citek.UUCP (John Schuch) writes:
>What, pray tell, is a reed solomon decoder?
Irv Reed and Gus Solomon were at MIT in 1960 and came up with the error
correction scheme, based on some early work by Shannon. I'm no expert in
the decoder world, so some of this is greek to me. Suffice to say that RS
techniques have been in use at JPL for a long long time. Voyager is how
many millions of miles away. It currently has the power of a dim light
bulb, but still sends back RS encoded data (images) that are terrific.
toms@ncifcrf.gov describes a great article on RS technology:
>I don't have a direct answer, but perhaps a lead for you. McEliece, a
>professor at CalTech wrote a nice paper that had a clear description
>of how such codes work:
>@article{McEliece1989,
>author = "R. J. McEliece",
>title = "Safety in Numbers: Protecting Data Mathemagically",
>journal = "California Institute of Technology, Engineering \& Science",
>volume = "LII",
>number = "4",
>pages = "26-36",
>year = "1989"}
--
Mike Tankenson Telos/Jet Propulsion Laboratory
4800 Oak Grove Drive, Pasadena, CA. 91109 Mail Stop: 301-260a
Phone: (818) 354-1439 SPAN-> JPLDIG::"mike@jpl-devvax.JPL.NASA.GOV"
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!snorkelwacker!usc!elroy.jpl.nasa.gov!jpl-devvax!mike From: mike@jpl-devvax.JPL.NASA.GOV (Mike Tankenson) Newsgroups: comp.dsp Subject: Re: Reed Solomon Decoders Message-ID: <7771@jpl-devvax.JPL.NASA.GOV> Date: 13 Apr 90 20:58:27 GMT References: <7740@jpl-devvax.JPL.NASA.GOV> <12707@mcdphx.phx.mcd.mot.com> Reply-To: mike@jpl-devvax.JPL.NASA.GOV (Mike Tankenson) Organization: Jet Propulsion Laboratory, Pasadena, CA Lines: 31