Coherent Signal Power Detector Using Higher-Order Statistics.
Patent, Filed 30 Sep 93, patented 7 May 96,
DEPARTMENT OF THE NAVY WASHINGTON DC
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A signal detection system divides a data sampling run into blocks and performs a fast Fourier transform on each block, sorting results by frequency. Combinations of results of the fast Fourier transform corresponding to each frequency are processed to derive a test statistic which is unbiased by Gaussian noise while including such combinations of results of the fast Fourier transform which would be redundant over other combinations. Information concerning the frequency behavior of the signal derived in the course of detection, is accomplished with increased sensitivity.
- Optical Detection and Detectors