https://scholars.lib.ntu.edu.tw/handle/123456789/607304
標題: | UMPS: Ultrasound-Microwave-Fused Phase Synchronization for UAV-Based Phased Arrays | 作者: | Huang S.-M Chen W.-C Tsai Y.-T Wu E.F SHIH-YUAN CHEN |
關鍵字: | Phased arrays;Phased shifters;Unmanned aerial vehicles (UAV);Antenna phased arrays;Phase shifters;Synchronization;Antenna element;Leader-follower;Phase synchronization;Phased shifter;Phased-arrays;Reference points;Relative positions;Root Mean Square;Synchronization method;Unmanned aerial vehicle;Ultrasonics | 公開日期: | 2021 | 卷: | 2021-November | 起(迄)頁: | 482-484 | 來源出版物: | Asia-Pacific Microwave Conference Proceedings, APMC | 摘要: | A wireless ultrasound-microwave-fused phase synchronization (UMPS) method for antenna elements in a UAV-based phased array is presented in this paper. The UMPS includes multiple non-connected modules that follow a leader-follower scheme for positioning and phase synchronization. The only leader is the reference point, to which followers locate their relative position by Time-of-Flight of ultrasound calibrated with microwave signal and synchronize its phase by on-board phase shifters. With a synchronized phase, the UMPS modules can form a phased array with a variable spatial arrangement of antenna elements. In this work, the prototype UMPS exhibits a root-mean-square (RMS) positioning error at 14 mm and a 7.5° RMS phase error for synchronizing a 433 MHz continuous wave RF signal, which is satisfactory for forming a UAV-based phased array. ? 2021 IEEE. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85124382037&doi=10.1109%2fAPMC52720.2021.9661732&partnerID=40&md5=734962a22eb87def9a7a59e7e41d297d https://scholars.lib.ntu.edu.tw/handle/123456789/607304 |
DOI: | 10.1109/APMC52720.2021.9661732 |
顯示於: | 電機工程學系 |
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