Combined cross polarization interference cancellation and intersymbol interference equalization for terrestrial digital radio systems

摘要

Data-aided equalization and cancellation in digital data transmission over dually polarized fading radio channels is disclosed. The present invention uses decision feedback structures (150) with finite-tap transversal filters (100). Subject to the assumption that some past andior future data symbols are correctly detected, formulas and algorithms for evaluating the least mean-square error for different structures are disclosed. In a sequence of curves, the performance of various structures for a particular propagation model and several fading events are evaluated and compared.