A general approach for obtaining joint representations for arbitrary physical quantities is presented. The characteristic function operator method of Moyal (1949) and Ville (1960) and generalized by Cohen (1966, 1976) and Scully and Cohen (1987) for the time-frequency case is developed for arbitrary variables
Published in:
Signal Processing, IEEE Transactions on
(Volume:44
,
Issue:
5
)
Date of Publication: May 1996