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List:       gnuradio-discuss
Subject:    Re: [Discuss-gnuradio] Ultrawideband
From:       Steve Schear <schear () lvcm ! com>
Date:       2001-09-05 19:11:00
Message-ID: 5.1.0.14.0.20010905115422.03129050 () pop3 ! lvcm ! com
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At 11:24 AM 9/5/2001 +0200, smoerk@gmx.de wrote:
>there is a /. article about UWB:
>http://slashdot.org/article.pl?sid=01/09/02/1440216
>
>a quote from an EDN article:
>The transmitter technology, UWB (ultrawideband), is based on a series
>of narrow, precisely timed pulses that generate a spectral bandwidth
>sometimes exceeding 5 GHz while producing insignificant interference
>within any specific frequency band. You can use UWB in radarlike
>applications to "see" through walls or measure precise distances and
>for short-range, high-bandwidth, wireless communication.
>
>http://www.e-insite.net/ednmag/contents/images/56204.pdf
>
>
>I wonder what devices could be used by GNU Radio to transmit and
>receive UWB? Is it getting more expensive or less expensive than a
>device for 2.4Ghz or is it not possible to get or build a device for
>UWB?

Not directly as the processing bandwidth is well beyond any A-D or PC 
CPU.  Its not clear that once all the specialized UWB circuitry is in place 
that SDR offes as significant a gain as with sinusoidal signals.

steve



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