Re: Correlation devices for measuring velocity

Article View: comp.robotics

Article #159

#159

From: Robert W Murphree
Date: Tue, 21 Jul 1992 20:23

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mvr@mlb.dmt.csiro.au (Vaughan Roberts) writes:

>I am interested in getting information on correlation devices which
>are used for measuring velocity.  I believe that they have been used for
>some time for measuring the velocity of cars by looking at the road surface
>at two points a fixed distance apart and performing an correlation between
>the two signals to provide an estimate of the time.
>I believe there might be product called something like Corrovit available
>commercially.  Has anyboby used such a device, or know who makes one?

A group at the mechanical engineering department at Georgia tech made
an optical correlator for usage in mobile robotics.  I believe it is
reported in the SPIE conference Mobile Robots III.              

Incidently, it was never actually sold-Industry wasn't interested at
the time.  It was developed as an alternative to odometry.
Supposedly it was potentially quite accurate.

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Path: arc1-ca.pugleaf.net!sparky!uunet!gossip.pyramid.com!olivea!apple!constellation!uokmax.ecn.uoknor.edu!rwmurphr
From: rwmurphr@uokmax.ecn.uoknor.edu (Robert W Murphree)
Newsgroups: comp.robotics
Subject: Re: Correlation devices for measuring velocity
Message-ID: <1992Jul21.202327.6324@constellation.ecn.uoknor.edu>
Date: 21 Jul 92 20:23:27 GMT
References: <161@vali.mlb.dmt.csiro.au>
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