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Optimal Reduced Rank Time-Frequency/Time Scale Quadratic Detectors

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Title: Optimal Reduced Rank Time-Frequency/Time Scale Quadratic Detectors
Author: Sayeed, Akbar M.; Jones, Douglas L.
Type: Conference paper
Keywords: deflection criterion; optimal detectors
Citation: A. M. Sayeed and D. L. Jones, "Optimal Reduced Rank Time-Frequency/Time Scale Quadratic Detectors," 1996.
Abstract: Optimal detectors based on time-frequency/time-scale representations (TFRs/TSRs) admit a representation in terms of a bank of spectrograms/scalograms that yields a large class of detectors. These range from the conventional matched filter to the more complex higher-rank detectors offering a superior performance in a wider variety of detection situations. In this paper, we optimize this complexity versus performance tradeoff by characterizing TFR/TSR detectors that optimize performance (based on the deflection criterion) for any given fixed rank. We also characterize the gain in performance as a function of increasing complexity thereby facilitating a judicious tradeoff. Our experience with real data shows that, in many cases, relatively low-rank optimal detectors can provide most of the gain in performance relative to matched-filter processors.
Date Published: 1996-01-20

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  • ECE Publications [1048 items]
    Publications by Rice University Electrical and Computer Engineering faculty and graduate students
  • DSP Publications [508 items]
    Publications by Rice Faculty and graduate students in digital signal processing.