航天器工程2025，Vol.34Issue(3)：95-102,8.DOI:10.3969/j.issn.1673-8748.2025.03.013
反极化干扰信号对5米S-SAR卫星测控系统性能影响分析
Effect Analysis of Depolarization Interference Signal on Performance of 5m S-SAR Satellite TT&C System
高翠东 1杨争光 1陈娟1
作者信息
- 1. 航天东方红卫星有限公司,北京 100094
- 折叠
摘要
Abstract
The gain pattern of the telemetry,tracking and command(TT&C)antenna array for the 5m S-band synthetic aperture radar(S-SAR)satellite is affected by the SAR antenna reflec-tion,resulting in depolarization gain towards the ground.Aiming at the above problem,the in-terference impact of the depolarization gain of the TT&C antenna on the satellite-to-ground re-ception performance of the unified S-band(USB)transponder is analyzed.The satellite layout is adjusted to optimize the TT&C antenna array configuration,and simulations are conducted to ana-lyze the optimized antenna array.Theoretical analysis and ground tests are conducted to evaluate the impact of depolarization interference signals on the performance of the USB transponder on-board the satellite and the ground TT&C system.The evaluation results show that the method proposed in this paper for verifying the impact of TT&C antenna array gain is correct and feasi-ble.The monitoring and interpretation results of the satellite TT&C in orbit show that the in-orbit tracking of TT&C is continuous without any abnormal interruptions,and the optimized performance of the satellite TT&C antenna array can meet the requirements of satellite TT&C.关键词
5米S频段合成孔径雷达卫星/测控系统/天线组阵/反极化增益/干扰信号Key words
5m S-SAR satellite/TT&C system/antenna array/depolarization gain/interference signal分类
信息技术与安全科学引用本文复制引用
高翠东,杨争光,陈娟..反极化干扰信号对5米S-SAR卫星测控系统性能影响分析[J].航天器工程,2025,34(3):95-102,8.
