无人机卫星导航系统的电磁干扰效应规律研究

doi:10.3969/j.issn.1001-506X.2020.12.03

系统工程与电子技术 ›› 2020, Vol. 42 ›› Issue (12): 2684-2691.doi: 10.3969/j.issn.1001-506X.2020.12.03

无人机卫星导航系统的电磁干扰效应规律研究

张庆龙(), 程二威(), 王玉明(), 陈亚洲*(), 马立云()

陆军工程大学石家庄校区电磁环境效应重点实验室，河北石家庄 050003

收稿日期:2020-04-28 出版日期:2020-12-01 发布日期:2020-11-27
通讯作者: 陈亚洲 E-mail:695231878@qq.com;erweichen1983@163.con;ymking2006@163.com;chen_yazhou@sina.com;271425024@qq.com
作者简介:张庆龙(1987-),男,博士研究生,主要研究方向为电磁环境效应与防护。E-mail:695231878@qq.com|程二威(1983-),男,副教授,硕士研究生导师,博士,主要研究方向为电磁环境模拟与测试技术。E-mail:erweichen1983@163.con|王玉明(1980-),女,讲师,博士,主要研究方向为电磁兼容与电磁防护。E-mail:ymking2006@163.com|马立云(1984-),女,讲师,硕士,主要研究方向为电磁兼容与电磁防护。E-mail:271425024@qq.com
基金资助:
十三五装备预研项目(41409010501)

Research on the electromagnetic interference effect of UAV satellite navigation system

Qinglong ZHANG(), Erwei CHENG(), Yuming WANG(), Yazhou CHEN*(), Liyun MA()

National Key Laboratory on Electromagnetic Environment Effects, Army Engineering University Shijiazhuang Campus, Shijiazhuang, 050003

Received:2020-04-28 Online:2020-12-01 Published:2020-11-27
Contact: Yazhou CHEN E-mail:695231878@qq.com;erweichen1983@163.con;ymking2006@163.com;chen_yazhou@sina.com;271425024@qq.com

摘要/Abstract

摘要：

针对无人机飞行过程中其卫星导航系统容易受到电磁干扰而不定位的问题,以某型无人机的导航接收机为试验对象,开展了连续波干扰信号的注入效应试验。通过试验得到不同类型卫星的带内电磁敏感度曲线,并研究了初始载噪比与电磁敏感阈值、干信比之间的关系。此外，还得到了导航接收机定位失锁的敏感频段,然后通过开展定性试验分析,得知同频干扰和混频器副波道干扰是导航接收机定位失锁的主要原因。根据以上结论给出一种无人机卫星导航系统电磁干扰预测的可行性方法,对提升无人机在复杂电磁环境下的安全态势具有重要意义。

关键词: 无人机, 卫星导航, 敏感阈值, 混频器, 预测方法

Abstract:

Aiming at the problem that the satellite navigation system of the unmanned aerial vehicle (UAV) is vulnerable to electromagnetic interference during the flight, the injection experiment of the continuous wave (CW) interference is carried out with the navigation receiver of a certain UAV type. Through the experiments, the in-band electromagnetic sensitivity curves of the different types of satellites are obtained, and the relationship between the initial carrier-to-noise ratio with the electromagnetic sensitivity threshold and interference signal ratio (ISR) is studied. Then, the sensitive frequency band of the navigation receiver is obtained, when positioning fails. Through the qualitative experiment analysis, the main reasons for the navigation receiver's positioning failure is the co-channel interference and the mixer sub channel interference. According to the above conclusion, a feasibility method for electromagnetic interference prediction of UAV satellite navigation system is given, which is of great significance for improving the safety situation of UAV in complex electromagnetic environment.

Key words: unmanned aerial vehicle (UAV), satellite navigation, sensitivity threshold, mixer, prediction method

中图分类号:

TM15

张庆龙, 程二威, 王玉明, 陈亚洲, 马立云. 无人机卫星导航系统的电磁干扰效应规律研究[J]. 系统工程与电子技术, 2020, 42(12): 2684-2691.

Qinglong ZHANG, Erwei CHENG, Yuming WANG, Yazhou CHEN, Liyun MA. Research on the electromagnetic interference effect of UAV satellite navigation system[J]. Systems Engineering and Electronics, 2020, 42(12): 2684-2691.

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无人机卫星导航系统的电磁干扰效应规律研究

Research on the electromagnetic interference effect of UAV satellite navigation system

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