Multistage Wiener filter for DS - CDMA detection

The contribution is oriented towards the promising and intensively studied realization of Wiener filter as the multistage structure. This approach avoids evaluation of the inverse of an autocorrelation matrix of the response of chip matched filter to an input signal and it enables an approximation of a multistage filter by curtailment the number of stages of this multistage Wiener filter. The contribution summarizes alternatives of processing by the individual stages and outlines the direction of the further activity.