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A GEO Satellite Position and Beam Features Estimation Method Based on Beam Edge Positions

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Ren Zixuan 1 *   Li Wei 2 *   Jin Jin 3,4 *   Zhan Yafeng 3,4 *   Li Ting 1 *  
文摘 Constrained by orbital configuration and spectrum sharing, non-geostationary orbit (NGEO)satellites may be interfered when they are in the beam range of geostationary orbit (GEO)satellite. However, it is difficult for NGEO operators to determine the signal source. Herein, we propose a method to locate the GEO signal source and estimate beam features, including beam pointing azimuth, elevation, and beamwidth, by the beam edge positions. We transform this estimation problem into two optimization problems by minimizing the estimation error, and solve both of them through a multi-variable joint iteration method with acceptable computation complexity. Numerical results show that when NGEO satellites pass through the beam twice, the longitude estimation error is about 0.01 degree, and the estimation results will be more and more accurate as the number of passing times increases. Besides, the proposed method is also effective when there are kilometer-level errors in beam edge positions.
来源 Journal of Communications and Information Networks ,2019,4(4):87-94 【核心库】
DOI 10.23919/JCIN.2019.9005436
关键词 GEO satellite position ; beam feature ; estimation method ; beam edge position ; optimization problem ; multi-variable joint iteration
地址

1. School of Aerospace Engineering, Tsinghua University, Beijing, 100084  

2. The State Radio Monitoring Center, Beijing, 100041  

3. Beijing National Research Center for Information Science and Technology, Beijing, 100084  

4. School of Information Science and Technology, Tsinghua University, Beijing, 100084

语种 英文
文献类型 研究性论文
ISSN 2096-1081
学科 电子技术、通信技术
基金 Interdisciplinary Major Project of School of Information Science and Technology, Tsinghua University ;  Shanghai Municipal Science and Technology Major Project ;  国家自然科学基金
文献收藏号 CSCD:6639964

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