Title :
Robustness of oversampled Gabor transient detectors: a comparison of energy and known location detectors
Author :
Lee, Namyoon ; Schwartz, S.C.
Author_Institution :
Naval Underwater Warfare Center, Newport, RI
fDate :
6/1/1997 12:00:00 AM
Abstract :
This correspondence provides a “context” for previous studies on the use of linear time-frequency transforms for transient signal detection in the case where signal component locations are assumed to be known. The robustness of a known-location detector (KLD) based on the oversampled Gabor transform is compared with that of the corresponding energy detector in the Gabor domain. As expected, the KLD was sensitive to location mismatch; unexpectedly, it was extremely sensitive to location mismatch
Keywords :
signal detection; signal sampling; time-frequency analysis; transforms; transient analysis; Gabor domain; energy detector; known-location detector; linear time-frequency transforms; location mismatch; oversampled Gabor transient detectors; robustness; signal component locations; transient signal detection; Detectors; Fourier transforms; Gaussian noise; Performance evaluation; Robustness; Signal detection; Signal processing; Time frequency analysis; Vectors; Wavelet transforms;
Journal_Title :
Signal Processing, IEEE Transactions on