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Line 1: '''Choi–Williams distribution function''' is one of the members of [[Cohen's class distribution function]]. It was first proposed by Hyung-Ill Choi and William J. Williams in 1989. This distribution function adopts exponential kernel to suppress the cross-term. However, the kernel gain does not decrease along the <math>\eta, \tau</math> axes in the ambiguity ___domain. Consequently, the kernel function of Choi–Williams distribution function can only filter out the cross-terms that result ~~form~~from the components that differ in both time and frequency center. == Mathematical definition ==

Choi–Williams distribution function: Difference between revisions