Adaptive dual polarized MIMO for dynamically moving transmitter and receiver
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United States of America Patent
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Jun 12, 2018
Issued Date -
Sep 7, 2017
app pub date -
Nov 14, 2016
filing date -
Sep 14, 2015
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Abstract
Systems and methods are presented for increasing throughput between mobile transmitters/receivers (e.g., between an Unmanned Aerial Vehicle and a ground station) using orthogonally polarized transmission channels. The system may first calibrate the receiver and transmitter antenna pairs using pilot signals and then may update look up tables for feedforward correction. The system may decouple and predict the cross polarization interference due to relative dynamic movement between the transmitter and the receiver. The system may perform a closed-loop suboptimal estimation to generate refined corrections by minimizing a difference between a training vector and a pilot-signal feedback. Cross-polarization discrimination between the transmission and reception antennas may then be Cancelled to improve signal to noise and interference ratio and performance of the system.
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