NASA NTRS · 19940000554
Real-Time, Polyphase-FFT, 640-MHz Spectrum Analyzer
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.
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Zimmerman, George A., Garyantes, Michael F., Grimm, Michael J., Charny, Bentsian, Brown, Randy D., Wilck, Helmut C.. 1994-10-01. Real-Time, Polyphase-FFT, 640-MHz Spectrum Analyzer. https://ntrs.nasa.gov/citations/19940000554
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