Перегляд за автором "Martynchuk, O."
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Публікація Improvement quality of remote video surveillance by using the cloud CCTV technology(ХНУРЕ, 2019) Araji, I.; Martynchuk, O.This work is devoted to the improvement of the quality of the remote video surveillance channel with the help of cloud-based video surveillance technology based on the use of polarization orthogonal antennas MIMOПублікація Some limitations of evaluating dual-polarized MIMO channel capacity(ХНУРЕ, 2020) Martynchuk, A.; Zubrytskyi, H.; Xuan, Li; Martynchuk, O.This article discusses possible bandwidth limitations of a radio access channel using MIMO technology with polarization-orthogonal channels, or dual polarization channels. The main attention is paid to the presence of cross-polarization isolation between channels, or cross-polarization relation, or Cross Polar Discrimination. The indicated ratio is determined mainly by the design features of the antennas. It is proposed to choose antennas with the minimum required values of cross-polarization ratio, which limit a given channel bandwidth.