Article View: sci.electronics
Article #6915laser speed gun detec
From: ian tuck
Date: Fri, 21 Aug 1992 07:04
Date: Fri, 21 Aug 1992 07:04
18 lines
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1292 bytes
JN> Anyone know what they're using as a detector? I'm building a laser JN>rangefinder for robot vision, and I'd like to know what these guys use. JN>PIN diodes don't put out much output and avalanche diodes are too nonlinear JN>for use when the beam is dimmer than the ambient light. So what do they JN>use to get that kind of S/N? Just in case yer wonderin', July's IEEE Spectrum has an article on the new laser radar detectors. No mention of detection schema, but it uses a pulsed-radar principle. It transmits a burst of pulses over a few 10ths of a second, then does a regression analysis on the measured delays. From what I could glean from the article, however, the down-the-road laser cannot (unlike normal radar) be used in moving mode. Hope this helps. Ian --- þ DeLuxeý/386 1.25 #8528 þ -- Canada Remote Systems - Toronto, Ontario/Detroit, MI World's Largest PCBOARD System - 416-629-7000/629-7044
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Path: arc1-ca.pugleaf.net!sparky!uunet!uunet.ca!canrem!dosgate![ian.tuck@canrem.com] From: "ian tuck" <ian.tuck@canrem.com> Newsgroups: sci.electronics Subject: laser speed gun detec Message-ID: <199221.864.21302@dosgate> Date: 21 Aug 92 02:04:44 EST Reply-To: "ian tuck" <ian.tuck@canrem.com> Distribution: sci Organization: Canada Remote Systems Lines: 18