Article View: sci.electronics
Article #5646Re: Fooling Radar Detectors
From: Mark Tovey
Date: Wed, 15 Aug 1990 15:00
Date: Wed, 15 Aug 1990 15:00
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In article <FISH.90Aug14183156@his.gemed.com> fish@gemed.ge.com (Mark Fisher, GE Medical, Milwaukee WI, x4-6553) writes:
>What do you guys and gals think of this idea?
>
>Mount 4 or so corner reflectors on a rotating frame such as
>a plastic bicycle tire. Coat the back of the reflector with resistive
>foam to dissipate the radar energy. Make the corner reflector large
>enough RCS (Radar Cross Section) wise to be much brighter than your
>car. Turn the reflectors at a constant rate of something like 120
>RPM. And wa-la your car's dominate doppler shift will be ~ 10 mph
>less than you are actually going. That is assumming you can figure
>out which way to turn the reflectors ;)
>
>The apparent speed of the reflectors will have a sinusoidal modulation
>to it from going around in circles. This may prevent the radar from
>getting a good lock on the doppler shift and lock in on the steady
>doppler shift from the car even though it is dimmer RCS wise. If this
>is so then you put your corner reflectors on a flat belt and rotate
>them like a belt sander.
>
>I would hate to get caught with something like this on the top of my
>car. :^)
>--
>// Mark M. Fisher
>// fish@gemed.ge.com
>// uunet!crdgw1!gemed!fish
>// sun!sunbrew!gemed!fish
Sounds like a pretty snazzy hood ornament to me!
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!pmafire!tuv From: tuv@pmafire.UUCP (Mark Tovey) Newsgroups: sci.electronics Subject: Re: Fooling Radar Detectors Message-ID: <1990Aug15.150028.9525@pmafire.UUCP> Date: 15 Aug 90 15:00:28 GMT References: <FISH.90Aug14183156@his.gemed.com> Reply-To: tuv@pmafire.UUCP (Mark Tovey) Organization: WINCO Computer Engineering Lines: 28