Research on Dynamic Electromagnetic Susceptibility for Electromagnetic Interference Prediction of UAV Information Link

被引：0
|
作者：
Zhang D. [1 ]
Chen Y. [1 ]
Cheng E. [1 ]
Du B. [1 ]
机构：
[1] Electromagnetic Environment Effects Key Laboratory, Shijiazhuang Campus of Army Engineering University, Shijiazhuang
来源：
Gaodianya Jishu/High Voltage Engineering | 2019年 / 45卷 / 02期
关键词：
AGC voltage; Electromagnetic susceptibility; Information link; Lost-link; Sensitive frequency; UAV;
D O I：
10.13336/j.1003-6520.hve.20190130043
中图分类号：
学科分类号：
摘要：
An unmanned aerial vehicle (UAV) is heavily dependent on the information link which is likely to be affected by external electromagnetic interference (EMI), therefore, we constructed an ideal model of the UAV under different flight conditions by analyzing a typical flight scenario, and proposed a dynamic simulation method of data link system in a laboratory Moreover, taking the data link system of a kind of UAV as the study object, we experimentally studied the dynamic electromagnetic injection effect test of continuous wave. The results show that the lost-link automatic gain control (AGC) voltage of upward data link interrupted by EMI, which represents the ability of the airborne receiver to receive the working signal power, is a fixed value in the linear region of the system. The farther the interfering frequency is away from the operating frequency, the larger the electromagnetic susceptibility will be under the condition of the same working signal power. However, the lost-link AGC voltage is relatively small, as low as 7 V. In the linear interval of the airborne data link system, the law of electromagnetic susceptibility is satisfied under the normal flight condition of UAV. The obtained electromagnetic susceptibility of the data link system changes with the attitudes of UAV and the flight distance between UAV and ground control station, which is of great significance to EMI prediction for UAV in the practical flight. © 2019, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
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页码：665 / 672
页数：7
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