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.
Real-Time, Polyphase-FFT, 640-MHz Spectrum Analyzer
NASA Tech Briefs ; 18 , 10
1994-10-01
Miscellaneous
No indication
English
Real-Time, Polyphase-FFT, 640-MHz Spectrum Analyzer
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