🚀 go-pugleaf

In article <1048@baird.cs.strath.ac.uk> dcthomso@cs.strath.ac.uk (Duncan C Thomson IE87) writes:
   >I am doing a final year project which will require correlation of an
   >(ultransonic) signal with a reference signal.  I am currently trying to decide
   >whether to do this in software or in hardware.
   >
   >Does anyone know of any hardware correlators?
   >
I know TRW make a few.

   >How fast are they?
   >
Very (10's of Megs I think, though its a few years sice I looked at the docco)
   >How much do they cost?
   >
If you have to ask, you probably can't afford them.

The CSIRO in Australia (division of Radio physics) built a custom correlator
for the AT (Australian Telescope), which is cascadeable and looked very nice.
I don't know whether there was ever thought about licencing it's manufacture
commercially.

A DSP approach may be possible (if a bit slow), I think INMOS has an app note
on one of their DSP chips for this sort of work. (See SGS-THOMPSON-RCA-INMOS..)


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