Re: Phased sonar

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Article #16983

#16983

From: John Schuch
Date: Mon, 11 Jan 1993 17:37

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In article <1993Jan11.025137.5570@ee.ubc.ca> jmorriso@ee.ubc.ca (John Paul Morrison) writes:
>In article <1993Jan10.104636.5690@doug.cae.wisc.edu> kolstad@cae.wisc.edu (Joel Kolstad) writes:
>
>The 3 transponders are like 3 antennas. Send pulses into the transponders
>with different phase angles, and the outputs add and substract in nifty
>patterns. The outputs interfere, cancelling out, or add, making the output
>focused in a certain direction.
>WIth nifty control electronics, who needs a spinning transponder/antenna.

I've wondered about this. Does each element of a phased array have its
own programmable delay line? The phased array radars I've seen look
like they have a LOT of elements.

John


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References: <1993Jan10.104636.5690@doug.cae.wisc.edu> <1993Jan11.025137.5570@ee.ubc.ca>

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From: schuch@phx.mcd.mot.com (John Schuch)
Subject: Re: Phased sonar
Message-ID: <1993Jan11.173709.10100@phx.mcd.mot.com>
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References: <1993Jan10.104636.5690@doug.cae.wisc.edu> <1993Jan11.025137.5570@ee.ubc.ca>
Date: Mon, 11 Jan 1993 17:37:09 GMT
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