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From: gd@milkfs.itstd.sri.com (Greg DesBrisay)
Newsgroups: sci.electronics
Subject: Re: Hardware Correlators
Message-ID: <28979@sparkyfs.istc.sri.com>
Date: 5 Dec 89 20:00:48 GMT
References: <1048@baird.cs.strath.ac.uk>
Sender: news@sparkyfs.istc.sri.com
Reply-To: gd@milkfs.itstd.sri.com.UUCP (Greg DesBrisay)
Organization: SRI International, Menlo Park CA
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SAW devices can be used to make good correlators.  I'm not sure of the
cost these days.

If you simply want to correlate a digital data stream, then several
chips manufactured by TRW might do the job for you.  Some TRW
correlators are the TMC2023, TDC1023, TMC2220, and the TMC2221.
(ref. TRW LSI Products Data Book, 1988)

TRW Application Note TP-17 entitled "Correlation--A Powerful Technique
for Digital Signal Processing" by Dr. J. Eldon is listed on the last
page of the TRW catalog.  That might be a source of good info.

TRW's LSI Products Sales Office in England is:
	Unit #28 Frederick Sanger Road
	Surrey Research Park
	Guildford, Surrey GU2 5YD
	England
	Phone: (0483) 302364

Good Luck! 


Greg