基于近场扫描的移动通信卫星EMC性能评估

doi:10.3969/j.issn.1001-506X.2020.09.03

系统工程与电子技术 ›› 2020, Vol. 42 ›› Issue (9): 1897-1902.doi: 10.3969/j.issn.1001-506X.2020.09.03

基于近场扫描的移动通信卫星EMC性能评估

张玉廷^1,²(), 肖淼^1,²(), 张亮¹(), 周怀安^1,²(), 吕争¹()

1. 北京空间飞行器总体设计部, 北京 100094
2. 北京市电磁兼容与天线测试工程技术研究中心, 北京 100094

收稿日期:2019-11-27 出版日期:2020-08-26 发布日期:2020-08-26
作者简介:张玉廷(1984-),男,高级工程师,博士,主要研究方向为航天器电磁兼容性总体设计。E-mail:zhang_sch@163.com|肖淼(1980-),男,工程师,硕士,主要研究方向为航天器微波载荷和天线近场测试。E-mail:xiaomiao@cast.casc|张亮(1981-),男,工程师,硕士,主要研究方向为航天器电磁兼容性设计与测试。E-mail:zhangliang1@cast.casc|周怀安(1977-)，男，高级工程师，博士，主要研究方向为航天器射频系统测试。E-mail:zhouhuaian@cast.casc|吕争(1985-)，男，高级工程师，博士，主要研究方向为航天器总体设计。E-mail:lvzheng@cast.casc
基金资助:
国家自然科学基金(61401022)

EMC performance evaluation of mobile communication satellites based on near-field scanning

Yuting ZHANG^1,²(), Miao XIAO^1,²(), Liang ZHANG¹(), Huaian ZHOU^1,²(), Zheng LYU¹()

1. Beijing Institute of Spacecraft System Engineering, Beijing 100094, China
2. Beijing Engineering Research Center of EMC and Antenna Test Technology, Beijing 100094, China

Received:2019-11-27 Online:2020-08-26 Published:2020-08-26

摘要/Abstract

摘要：

针对移动通信卫星射频载荷产生的系统内和系统间复杂电磁兼容性问题,以及批产化研制特点带来的非专门电磁兼容性试验验证评估需求,提出了一种基于近场扫描的电磁兼容性评估方法。针对卫星载荷的辐射影响,采用柱面近场扫描获得载荷的近场辐射特性,用于系统内的电磁兼容性分析。基于近远场变换技术获得远场辐射特性,用于星座系统间的电磁兼容性评估。给出了探头补偿方法和扫描步进优化方法来提高测试准确度和测试效率。仿真和试验校验证明了方法的有效性。将该方法应用到卫星系统内和系统间电磁兼容性(electromagnetic compatibility, EMC)分析评估中,结果表明方法可有效满足工程应用需求。

关键词: 电磁兼容性, 移动通信卫星, 柱面近场, 近远场变换, 性能评估

Abstract:

A evaluation method based on near-field scanning is proposed to solve the complex intrasystem and intersystem electromagnetic compatibility (EMC) problem caused by the radio frequency payload of the mobile communication satellite, and the development needs in the experiment verification and evaluation of non-special EMC caused by the characteristics of batch production. Aiming at the radiation effect of satellite payload, the cylindrical near-field scanning method is used to obtain the near-field radiation characteristics of the load for the intrasystem EMC analysis in the system. And the intersystem EMC evaluation of the satellite constellation is analyzed based on the near to far field transformations which obtains the far field radiation characteristics. The probe compensation and scanning step increasing methods are also proposed to improve the test precision and efficiency. The effectiveness is proved by the simulation and test validation. The method has been used in evaluating the intrasystem and intersystem EMC, and the results demonstrate the effectiveness of the proposed method in engineering applycation.

Key words: electromagnetic compatibility (EMC), mobile communication satellite, cylindrical near-field, near to far field transformations, performance evaluation

中图分类号:

TN97

张玉廷, 肖淼, 张亮, 周怀安, 吕争. 基于近场扫描的移动通信卫星EMC性能评估[J]. 系统工程与电子技术, 2020, 42(9): 1897-1902.

Yuting ZHANG, Miao XIAO, Liang ZHANG, Huaian ZHOU, Zheng LYU. EMC performance evaluation of mobile communication satellites based on near-field scanning[J]. Systems Engineering and Electronics, 2020, 42(9): 1897-1902.

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基于近场扫描的移动通信卫星EMC性能评估

EMC performance evaluation of mobile communication satellites based on near-field scanning

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