https://scholars.lib.ntu.edu.tw/handle/123456789/639429
標題: | Two-Dimensional Positioning and Phase Synchronization System for Drone-Based Spatially Reconfigurable Phased Array | 作者: | Cheng, Hsiang Yang, Sheng Yeh Su, Tzu Chun Tsai, Yun Ting Huang, Shih Ming SHIH-YUAN CHEN |
關鍵字: | phased arrays | phased shifter | unmanned aerial vehicles (UAV) | 公開日期: | 1-一月-2023 | 來源出版物: | IEEE Conference on Antenna Measurements and Applications, CAMA | 摘要: | This paper presents a 2-D wireless ultrasound-microwave phase synchronization (UMPS) system for a Unmanned Aerial Vehicle (UAV) -based phased array. It is extended from its 1-D counterpart [6]. The UMPS system consists of multiple non-connected modules that operate in a leader-follower scheme for positioning and phase synchronization. The UMPS includes multiple non-connected modules that follow a leader-follower scheme for positioning and phase synchronization. The leader is the only reference point, to which followers locate their relative positions by Time-of-Flight (ToF) of ultrasound calibrated with microwave signal and synchronize its phase by on-board phase shifters. With a proper phase compensation, the UMPS modules can form a phased array with a 2D-variable spatial arrangement of antenna elements. In this work, the 2D-prototype UMPS exhibits a root-mean-square (RMS) positioning error at 9 mm and a 5.6° RMS phase error for synchronizing a 433 MHz continuous wave RF signal, which is satisfactory for forming a UAV-based phased array. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/639429 | ISBN: | 9798350323047 | ISSN: | 24741760 | DOI: | 10.1109/CAMA57522.2023.10352801 |
顯示於: | 電機工程學系 |
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