Set up a method for recovering phase and polarization

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Reference no: EM131350034

A given digital communication system for a passband dual polarization channel uses four-dimensional modulation, consisting of QPSK on each polarization axis of an electromagnetic wave. Within the channel, there is an arbitrary phase shift on the carrier and an arbitrary polarization rotation. Use the maximum likelihood principle to set up a method for recovering phase and polarization. Will the solution change if each polarization channel can have an independent phase shift on its carrier?

Reference no: EM131350034

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