A new formulation of generalized discrete-time time-frequency distributions

A definition of generalized discrete-time time-frequency distributions is introduced. This definition utilizes the full information provided by a data sequence so that one can avoid aliasing which is troublesome in the existing definition. The formulation provides a unified framework for implementing Cohen´s class of generalized time-frequency distributions which was formulated in the continuous-time domain. Some requirements for the discrete-time kernel in the approach are discussed in association with desirable distribution properties