Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!apple!sun-barr!decwrl!ucbvax!hplabs!hpfcso!hpfcdj!myers
From: myers@hpfcdj.HP.COM (Bob Myers)
Newsgroups: sci.electronics
Subject: Re: the laser speed measuring device
Message-ID: <17660038@hpfcdj.HP.COM>
Date: 27 Nov 89 20:21:29 GMT
References: <89325.164006BHB3@PSUVM.BITNET>
Organization: Hewlett Packard -- Fort Collins, CO
Lines: 12

>The laser gadget is almost certainly using a pulsed beam rather than a
>continuous one, and picking pulses out of a continuous background is not
>generally a difficult problem.  Car headlights don't even show the 120Hz
>modulation of normal AC lighting, much less pulses short enough to confuse
>something with nanosecond-range resolution.

Ah, but they *COULD*.......:-)


Bob Myers  KC0EW   HP Graphics Tech. Div.|  Opinions expressed here are not
                   Ft. Collins, Colorado |  those of my employer or any other
myers%hpfcla@hplabs.hp.com               |  sentient life-form on this planet.


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