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Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers (1994)
Pacific Grove, CA, USA
Oct. 31, 1994 to Nov. 2, 1994
ISSN: 1058-6393
ISBN: 0-8186-6405-3
pp: 1123-1127
C.D. Creusere , Naval Weapons Center, China Lake, CA, USA
G. Hewer , Naval Weapons Center, China Lake, CA, USA
ABSTRACT
In this method of pattern classification a wavelet transform is used to extract features from the input signal which are then compared in a scale sequential manner (from coarse to fine) to a trained nearest neighbor codebook. At each scale, possible classification categories are eliminated until only one class is left. We apply this pattern classifier to the problem of fingerprinting post-detection radar pulses and analyze its performance in noise using Monte Carlo simulations. To make our classifier shift invariant, we process the input with an undecimated wavelet transform until the pulse edge is sensed and then start decimating the wavelet coefficients as appropriate to each scale.<>
INDEX TERMS
pattern classification, signal resolution, wavelet transforms, noise, feature extraction, encoding, radar signal processing, radar detection
CITATION

C. Creusere and G. Hewer, "A wavelet-based method of nearest neighbor pattern classification using scale sequential matching," Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers(ACSSC), Pacific Grove, CA, USA, 1995, pp. 1123-1127.
doi:10.1109/ACSSC.1994.471634
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