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The technical realization of modern wireless receivers yields significant interfering IQ-imbalances, which have to be compensated digitally. To cancel these IQ-imbalances, we propose an algorithm using iterative blind source separation (IBSS) as well as information about the modulation scheme used (hence the term semi-blind). The novelty of our approach lies in the fact that we match the nonlinearity...
In this article we derive that six-port receivers require analog rectified wave suppression in order to be applicable within mobile communications. The interrelationship of circuit matching, dynamic range of the ADCs and the so-called RF-self-mixing product are deduced analytically. We present a receiver architecture with immanent RF-self-mixing product suppression. The results enable the prediction...
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