Comparison of the Gabor and short-time Fourier transforms for signal detection and feature extraction in noisy environments
Louis Auslander, Charles Buffalano, Richard S. Orr, Richard Tolimieri · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1990
Effective signal detection and feature extraction in noisy environments generally depend on exploiting some knowledge of the signal. The short-time Fourier transform and the Gabor transform are two methods that exploit signal envelope information. This paper compares the two transforms and makes the case that the Gabor representation can often be more compact, and may require substantially less computation and storage in some applications. There is a sense in which the Gabor achieves a preferential trade of SNR for resolution, and because of this, one can also expect better signal recognition and feature reconstructions from the Gabor transform in the presence of noise.