Article View: sci.electronics
Article #14390Re: R.A.M. (was Re: Police Radar Frequency Info)
From: hermann
Date: Fri, 21 Jun 1991 21:39
Date: Fri, 21 Jun 1991 21:39
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In article <7372@celery15.UUCP> skeffing@motcid.UUCP (John F. Skeffington) writes: ... The implication of being able to detect a stealth aircraft at 250 miles woufd be that it could detect a "normal" aircraft at several times that distance. I find this very interesting and would like to know more about it. I believe that those large (drivein theatre screen-sized) phased array radars you see in some of the journals from time to time use "back-scattering". To my understanding backscattering bounces signals off the upper layers of atmosphere to "see" over the horizon. Added benefit is looking "down" on your target, negating the effect of head-on countermeasures (stealth aircraft emphasize reducing the "head-on" radar signature). I have heard that large coastal phased arrays were used in the eastern block for a few years before the west started using them. | Mike Hermann | hermann@cpsc.ucalgary.ca _Organized_ religion is like organized crime: it preys on people's weakness, generates huge profits, and is nearly impossible to eradicate.
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<HERMANN.91Jun21153941@gi.cpsc.ucalgary.ca>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!lll-winken!aunro!alberta!cpsc.ucalgary.ca!fsa!hermannReferences:
<1991Jun14.211314.16835@en.ecn.purdue.edu> <2003@ole.UUCP> <1991Jun18.005130.28440@cs.mcgill.ca> <2017@ole.UUCP> <7372@celery15.UUCP>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!lll-winken!aunro!alberta!cpsc.ucalgary.ca!fsa!hermann From: hermann@cpsc.ucalgary.ca (hermann) Newsgroups: sci.electronics Subject: Re: R.A.M. (was Re: Police Radar Frequency Info) Message-ID: <HERMANN.91Jun21153941@gi.cpsc.ucalgary.ca> Date: 21 Jun 91 21:39:41 GMT References: <1991Jun14.211314.16835@en.ecn.purdue.edu> <2003@ole.UUCP> <1991Jun18.005130.28440@cs.mcgill.ca> <2017@ole.UUCP> <7372@celery15.UUCP> Organization: U. of Calgary, Alberta, Canada Lines: 19 In-Reply-To: skeffing@motcid.UUCP's message of 21 Jun 91 14:07:51 GMT