Design of OAM Beam Directional Modulation Signal in Communication and Guidance Integration
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Date
2020-09
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Společnost pro radioelektronické inženýrství
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Abstract
An orbital angular momentum directional modulation (OAM-DM) signal is proposed for communication and guidance integration. This signal is transmitted by a uniform circular antenna array (UCA). We divide the array into odd and even antenna groups. Each group is excited by differential coded digital modulation waveform to send different signal constellations in different directions. In order to improve the performance of angle estimation, we have designed specific phase shift sequences to obtain the different OAM modes. Mode detection can eliminate multiple value ambiguity of elevation and azimuth angles. The single antenna receiver can demodulate the OAM-DM signal to communicate, detect OAM modes and estimate angles in different directions. Finally, we assess the effectiveness of the proposed approach via numerical simulation.
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Radioengineering. 2020 vol. 29, č. 3, s. 563-572. ISSN 1210-2512
https://www.radioeng.cz/fulltexts/2020/20_03_0563_0572.pdf
https://www.radioeng.cz/fulltexts/2020/20_03_0563_0572.pdf
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Peer-reviewed
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en