Interference Prediction Method of Communication Equipment Under Complex Electromagnetic Environment
LI Wei① WEI Guanghui① PAN Xiaodong① WANG Yaping① WAN Haojiang① SUN Shuqing②
①(National Key Laboratory of Electromagnetic Environment Effects, College of Ordnance Engineering, Shijiazhuang 050003, China) ②(Unit 61469 of the PLA, Shijiazhuang 050000, China)
Abstract:The communication equipment effect mechanism under in-band electromagnetic interference is studied in this paper. Two electromagnetic interference prediction models are established. One model is based on the assumption that in-band interference is sensitive to the amplitude of field strength, and the other is based on the assumption that in-band interference is sensitive to the average power. The sensitive parameter can be distinguished by sine and AM test, and the Equipment Under Test (EUT) interference is predicted according to different models. The sine and AM continuous wave test, in-band dual-frequency test, in-band triple-frequency test are conducted with two typical VHF radios as test objects. Experiment results show that EUT1 is sensitive to the amplitude of field strength, and the model results are slightly greater than 1, and EUT2 is sensitive to the average power. The model results are all approximate 1. The prediction method of in-band multi-frequency electromagnetic interference is modified and improved by the test results. The proposed prediction method is able to forecast the communication equipment interference effectively under the in-band multi-frequency electromagnetic environment.
李伟,魏光辉,潘晓东,王雅平,万浩江,孙梳清. 复杂电磁环境下通信装备干扰预测方法[J]. 电子与信息学报, 2017, 39(11): 2782-2789.
LI Wei, WEI Guanghui, PAN Xiaodong, WANG Yaping,WAN Haojiang, SUN Shuqing. Interference Prediction Method of Communication Equipment Under Complex Electromagnetic Environment. JEIT, 2017, 39(11): 2782-2789.
LIU Peiguo, QIN Yujian, ZHOU Dongming, et al. Electromagnetic Compatibility Fundamentals[M]. Beijing: Publishing House of Electronics Industry, 2015: 259-261.
[2]
GJB 151B-2013. 军用设备和分系统电磁发射和敏感度要求与测量[S]. 2013.
GJB 151B-2013. Electromagnetic emission and susceptibility requirements and measurments for military equipment and subsystems[S]. 2013.
[3]
MARDIGUIAN M. Combined effects of several simultaneous EMI couplings[C]. IEEE International Symposium on EMC, 2000: 181-184.
[4]
GROMMES W and ARMSTRONG K. Developing immunity testing to cover intermodulation[C]. IEEE International Symposium on EMC, 2011: 999-1004.
[5]
DUFFY A, ORLANDI A, and ARMSTRONG K. Preliminary study of a reverberation chamber method for multiple-source testing using intermodulation[J]. IET Science, Measurement and Technology, 2010, 4(1): 21-27.
[6]
WANG Guosheng and QI Zongfeng. AHP effectiveness evaluation of electronic warfare command and control system under complex electromagnetic[J]. Advanced Materials Research, 2014, 989-994: 3212-3215.
[7]
AI-Badi A H, Ghania S M, and EL-Saadany E F. Prediction of metallic conductor voltage owing to electromagnetic coupling using neuro fuzzy modeling[J]. IEEE Transactions on Power Delivery, 2009, 24(1): 319-327.
[8]
GUO Shuxia, Dong Zhongyao, HU Zhantao, et al. Simulation of dynamic electromagnetic interference environment for unmanned aerial vehicle data link[J]. China Communications, 2013, 10(7): 19-28.
[9]
YAN Liping, ZHAO Xiang, ZHAN Hang, et al. Artificial neural network modeling of electromagnetic interference caused by nonlinear devices inside a metal enclosure[J]. Journal of Electromagnetic Waves & Application, 2015, 29(8): 992-1004.
[10]
CEPERIC V, GIELEN G, and BARIC A. Black-box modeling of conducted electromagnetic immunity by support vector machines[C]. International Symposium on Electromagnetic Compatibility (EMC Europe), Rome, Italy, 2012, 1-6.
ZHANG Weiwei, DING Wenrui, and LIU Chunhui. Prediction of interference effect on UAV data link in complex environment[J]. Systems Engineering and Electronics, 2016, 38(4): 760-766. doi: 10.3969/j.issn.1001-506X.2016.04.06.
WEI Guanghui, GENG Lifei, and PAN Xiaodong. Mechanism of electromagnetic radiation effects for communication equipment[J]. High Voltage Engineering, 2014, 40(9): 2685-2692. doi: 10.13336/j.1003-6520.hve.2014.09.011.
[13]
OTT W H. Electromagnetic Compatibility Engineering[M]. New York, Publishing House of Wiley, 2011.
LI Wei, WEI Guanghui, PAN Xiaodong, et al. Electromagnetic radiation effects forecasting method about in-band dual-frequency continuous wave for typical communication equipment[J]. Systems Engineering and Electronics, 2016, 38(11): 2474-2480. doi: 10.3969/j.issn.1001 -506X.2016.11.04.
LI Wei, WEI Guanghui, PAN Xiaodong, et al. Research on electromagnetic susceptibility criterion for typical communication equipment[J]. Journal of Microwaves, 2016, 32(6): 70-75. dio: 10.14183/j.cnki.1005-6122.201606017.