Electromagnetic environment effects of vehicle ignition pulses on shortwave radio receivers

Le Bo; Liu Zhong; Hou Zhilin; Cao Chunxia

doi:10.11884/HPLPB202032.190441

Volume 32 Issue 7

Jun. 2020

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Le Bo, Liu Zhong, Hou Zhilin, et al. Electromagnetic environment effects of vehicle ignition pulses on shortwave radio receivers[J]. High Power Laser and Particle Beams, 2020, 32: 073004. doi: 10.11884/HPLPB202032.190441

Citation:

Le Bo, Liu Zhong, Hou Zhilin, et al. Electromagnetic environment effects of vehicle ignition pulses on shortwave radio receivers[J]. High Power Laser and Particle Beams, 2020, 32: 073004. doi: 10.11884/HPLPB202032.190441

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Electromagnetic environment effects of vehicle ignition pulses on shortwave radio receivers

doi: 10.11884/HPLPB202032.190441

National Key Laboratory of Science and Technology on Blind Signal Processing, Chengdu 610041, China

Received Date: 2019-12-02
Rev Recd Date: 2020-06-20
Publish Date: 2020-06-24

Abstract

Abstract

To evaluate Electromagnetic Environment Effects (E3) of the vehicle ignition pulses on High Frequency Receiving Station (HFRS), a model of the vehicle ignition circuit has been analyzed, and frequency spectrums of the noises induced by a car and a truck at the moment of their engine being ignited were measured. Using the method-of-moments-based electromagnetic simulation tool, we have modeled the ignition-equivalent antennas by a car and a truck respectively and obtained their transmission loss fluctuation curves in the transmission path to a 10 m long monopole receiving antenna. In comparison, E3 of the engine ignition by two cars and a truck on HFRS in the countryside was measured. Simulation shows that the least transmission loss from the car and truck to the 10 m monopole antenna located 30 and 100 m away occurs at 7.5 MHz, which is 24 dB and 32.2 dB respectively. This measurement indicates that the emitting signal induced by the engine ignition of the truck is 14 dB higher than that of the car. In the distance of 30 m from the vehicle, the noise floor in the low frequency band is raised 1−2 dB. When the distance is increased to 100 m, the effect can be neglected.
- high frequency electromagnetic environment,
- man-made noise,
- vehicle ignition pulse,
- method of moments,
- transmission loss fluctuation curve

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References(12)

References

[1]	姚富强, 刘忠英, 赵杭生. 短波电磁环境问题研究——对认知无线电等通信技术再认识[J]. 中国电子科学研究院学报, 2015, 10(2):156-161, 179. (Yao Fuqiang, Liu Zhongying, Zhao Hangsheng. Study on the issues of HF electromagnetic environment[J]. Journal of CAEIT, 2015, 10(2): 156-161, 179 doi: 10.3969/j.issn.1673-5692.2015.02.008
[2]	Radiocommunication Sector of ITU. Recommendation ITU-R P. 372-12—Radio noise[R]. Geneva: International Telecommunication Union, 2015: 13-16.
[3]	Coleman C J. Noise and the choice of antenna in HF communications[C]//Proceedings of the 10th IET International Conference on Ionospheric Radio Systems and Techniques. 2006: 321-325.
[4]	Giesbrecht J, Clarke R, Abbott D. An empirical study of the probability distribution of HF noise[J]. Fluctuation and Noise Letters, 2006, 6(2): L117-L125. doi: 10.1142/S0219477506003203
[5]	Wagstaff A, Merricks N. Man-made noise measurement programme[J]. IEE Proceedings on Communication, 2005, 152(3): 371-377. doi: 10.1049/ip-com:20045025
[6]	Iwama M. Estimation of background noise in HF-band[C]//Asia-Pacific Symposium on Electromagnetic Compatibility and 19th International Zurich Symposium on Electromagnetic Compatibility. 2008: 478-481.
[7]	胡绘斌, 陈建忠. 短波大气噪声的数值计算方法[J]. 通信技术, 2010, 43(7):31-32. (Hu Huibin, Chen Jianzhong. Numerical method for calculating shortwave atmospheric noise[J]. Communications Technology, 2010, 43(7): 31-32 doi: 10.3969/j.issn.1002-0802.2010.07.011
[8]	张连迎, 王聚杰, 弓勇义. 典型工业区无线电噪声测量与分析[J]. 电子测量技术, 2014, 37(5):91-94. (Zhang Lianying, Wang Jujie, Gong Yongyi. Measurement and analysis of radio noise in typical industrial park[J]. Electronic Measurement Technology, 2014, 37(5): 91-94
[9]	涂奔. 高压电力走廊对短波监测站无线电干扰实证研究[D]. 上海: 复旦大学, 2010: 17-23. Tu Ben. The research of a high-voltage power corridor assess the electromagnetic environment effects on the shortwave monitoring station[D]. Shanghai: Fudan University. 2010: 17-23
[10]	唐波, 张建功, 赵志斌, 等. 特高压输电线路对高频信号无源干扰的近似求解[J]. 高电压技术, 2012, 38(6):1420-1427. (Tang Bo, Zhang Jiangong, Zhao Zhibin, et al. Approximate calculation of reradation interference in high frequency signals from UHV transmission lines[J]. High Voltage Engineering, 2012, 38(6): 1420-1427
[11]	汪泉弟, 刘春艳, 俞集辉, 等. 汽车火花点火系统电磁干扰的抑制方法[J]. 重庆大学学报(自然科学版), 2007, 30(7):46-49. (Wang Quandi, Liu Chunyan, Yu Jihui, et al. On suppressing electromagnetic interference caused by automobile spark ignition system[J]. Journal of Chongqing University(Natural Science Edition), 2007, 30(7): 46-49
[12]	俞集辉, 贾晋, 汪泉弟, 等. 汽车点火系统传导电磁干扰仿真[J]. 重庆大学学报, 2011, 34(1):88-93. (Yu Jihui, Jia Jin, Wang Quandi, et al. The simulation of conducted EMI in the ignition system for automotive[J]. Journal of Chongqing University, 2011, 34(1): 88-93