New adaptive coherent CFAR wavelet detector

George A. Lampropoulos; George Gigli; A. Damini; Maria T. Rey

doi:10.1117/12.328672

4 December 1998 A new adaptive coherent CFAR wavelet detector

George A. Lampropoulos, George Gigli, A. Damini, Maria T. Rey

Proceedings Volume 3491, 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications; (1998) https://doi.org/10.1117/12.328672
Event: 1998 International Conference on Applications of Photonic Technology, 1998, Ottawa, Canada

Abstract

The objective of this paper is to present a new coherent adaptive Constant False Alarm Rate (CFAR) wavelet detector which can be used as an additional independent detector for effective CFAR detection of point targets. It is shown through examples that this detector may provide a reliable estimate of the clutter mean which in turn is used, when multiplied by a constant, to determine the CFAR detector cutoff point for the target detection process. The detector is coherent and furthermore, the real and imaginary parts of the clutter and target are processed independently and their results are combined. As shown through an experimental example, coherent detectors offer better performance over amplitude detectors at high Signal to Noise Ratios (SNRs). At low SNRs their performance approximates that of amplitude detectors due to the fact that phase information is very sensitive to noise at low SNRs and its contribution becomes insignificant.

Citation Download Citation

George A. Lampropoulos, George Gigli, A. Damini, and Maria T. Rey "A new adaptive coherent CFAR wavelet detector", Proc. SPIE 3491, 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications, (4 December 1998); https://doi.org/10.1117/12.328672

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