On Joint Cancellation Of Doppler Shift, Phase Jitter, And Amplitude Jitter

A system of three adaptive cancellers for amplitude jitter, Doppler shift, and phase jitter, cascaded one after another and working jointly for simultaneously canceling of these impairments, is discussed in the paper. The optimal cancellation and the impact of the order of cancellations are also discussed. Computer simulations demonstrate that although there is nonlinear interaction among the transmission impairments during the canceller operation, the system may nonetheless be designed as three independent canceller stages up to some limit in the amount of impairment. The design limits of the system are constrained by the design limit of the individual canceller.