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- Path: 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
-
- 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
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