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Record Details

Record 12 of 6740
Real-Time, Polyphase-FFT, 640-MHz Spectrum Analyzer
Author and Affiliation:
Zimmerman, George A.(Caltech)
Garyantes, Michael F.(Caltech)
Grimm, Michael J.(Caltech)
Charny, Bentsian(Caltech)
Brown, Randy D.(Caltech)
Wilck, Helmut C.(Caltech)
Abstract: Real-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.
Publication Date: Oct 01, 1994
Document ID:
19940000554
(Acquired Dec 28, 1995)
Accession Number: 94B10554
Subject Category: ELECTRONIC SYSTEMS
Report/Patent Number: NPO-18776
Document Type: NASA Tech Brief
Publication Information: NASA Tech Briefs (ISSN 0145-319X); 18; 10; P. 64
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: Jet Propulsion Lab., California Inst. of Tech.; Pasadena, CA, United States
Description: In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: FOURIER TRANSFORMATION; RADIO SIGNALS; SPECTRUM ANALYSIS
Availability Source: National Technology Transfer Center (NTTC), Wheeling, WV
Availability Notes: Additional information available through: National Technology Transfer Center (NTTC), Wheeling, WV 26003, (Tel: 1-800-678-6882).
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