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Real-Time, Polyphase-FFT, 640-MHz Spectrum AnalyzerReal-time polyphase-fast-Fourier-transform, polyphase-FFT, spectrum analyzer designed to aid in detection of multigigahertz radio signals in two 320-MHz-wide polarization channels. Spectrum analyzer divides total spectrum of 640 MHz into 33,554,432 frequency channels of about 20 Hz each. Size and cost of polyphase-coefficient memory substantially reduced and much of processing loss of windowed FFTs eliminated.
Document ID
19940000554
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Zimmerman, George A.
(Caltech)
Garyantes, Michael F.
(Caltech)
Grimm, Michael J.
(Caltech)
Charny, Bentsian
(Caltech)
Brown, Randy D.
(Caltech)
Wilck, Helmut C.
(Caltech)
Date Acquired
August 16, 2013
Publication Date
October 1, 1994
Publication Information
Publication: NASA Tech Briefs
Volume: 18
Issue: 10
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
NPO-18776
Accession Number
94B10554
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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