超短波天线激励下车辆电磁环境仿真分析

doi:10.16182/j.issn1004731x.joss.18-0195

系统仿真学报 ›› 2019, Vol. 31 ›› Issue (5): 946-954.doi: 10.16182/j.issn1004731x.joss.18-0195

超短波天线激励下车辆电磁环境仿真分析

孙晓颖, 王汉青, 杨锦鹏, 赵昱

吉林大学通信工程学院,吉林长春 130022

收稿日期:2018-04-09 修回日期:2018-08-14 出版日期:2019-05-08 发布日期:2019-11-20
作者简介:孙晓颖(1969-),男,吉林长春,博士,教授,研究方向为车辆电磁兼容,无线定位技术及应用;王汉青(1993-),男,内蒙古包头,硕士,研究方向为车辆电磁兼容;杨锦鹏(1989-),男,山东烟台,博士,研究方向为车辆电磁兼容。

Simulation Analysis of Vehicle Electromagnetic Environment under Excitation of VHF Antenna

Sun Xiaoying, Wang Hanqing, Yang Jinpeng, Zhao Yu

College of Communication Engineering, Jilin University, Changchun 130022, China

Received:2018-04-09 Revised:2018-08-14 Online:2019-05-08 Published:2019-11-20

摘要/Abstract

摘要： 针对车载大功率超短波天线激励下的驾驶室场强分布规律问题,提出数值仿真结合极值理论预测场强极大值的方法,以降低场强样本获取难度并提高拟合精度。利用CST软件仿真驾驶室场强样本,通过GEV (Generalized Extreme Value)分布拟合场强整体分布,应用基于GP (Generalized Pareto)分布的POT（Peak Over Threshold）模型研究场强高值部分统计特性。结果表明,频率92.5 MHz的超短波天线在不同安装位置激励时驾驶室内场强均服从GEV分布,GP分布拟合场强高值部分偏差更小,通过POT模型可计算出一定分位数下驾驶室场强极大值。

关键词: 车辆电磁兼容, 车载超短波天线, 车辆驾驶室电磁环境, GEV分布, POT模型

Abstract: Aiming at the issue of distribution regularity of field strength in vehicle cab under excitation of vehicle-borne high-power VHF antenna, a method of numerical simulation combining with extreme value theory to predict maximum field strength is proposed, which minimizes sample collecting difficulty and fitting deviation. CST simulation software is applied to get field strength sample in vehicle cab, and generalized extreme value (GEV) is used to fitting entire field strength distribution. peak over threshold (POT) model based on Generalized Pareto distribution is used to research high field strength value sample statistical characteristics. Resultsshow that under antenna excitation of 92.5 MHz working frequency at different installation positions the field strength in vehicle cab all follows GEV distribution, and the deviation is lower when using GP distribution fits high value of strength field; at a certain quantile the maximum value of field strength in vehicle cab is calculated by using POT model.

Key words: vehicle EMC, vehicle-borne VHF antenna, electromagnetic environment of vehicle cab, GEV distribution, POT model

中图分类号:

O441.4

孙晓颖, 王汉青, 杨锦鹏, 赵昱. 超短波天线激励下车辆电磁环境仿真分析[J]. 系统仿真学报, 2019, 31(5): 946-954.

Sun Xiaoying, Wang Hanqing, Yang Jinpeng, Zhao Yu. Simulation Analysis of Vehicle Electromagnetic Environment under Excitation of VHF Antenna[J]. Journal of System Simulation, 2019, 31(5): 946-954.

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超短波天线激励下车辆电磁环境仿真分析

Simulation Analysis of Vehicle Electromagnetic Environment under Excitation of VHF Antenna

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