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On detection using filter banks and higher order statistics

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2 Author(s)
Sattar, F. ; Div. of Inf. Eng., Nanyang Technol. Univ., Singapore ; Salomonsson, G.

We suggest a method, based on the use of filter bank and higher order statistics (cumulants), for detection of transient signals. The method first uses a bandpass filter bank, which separates the spectrum of the observed signal into narrow frequency bands. Each subfilter of the filter bank is then followed by a cumulant estimator, and thereby suppressing colored noise. By selecting those subfilters that have large output energies, the filter bank can approximate the behavior of a matched filter. Moreover, no a priori information about the waveform of the signal is needed. The performance of the detector is evaluated by using a simulated signal as well as a measured signal. The presented detector is compared with the optimal matched filter detector.

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Aerospace and Electronic Systems, IEEE Transactions on  (Volume:36 ,  Issue: 4 )