基于幅度概率分布的高速铁路无线通信电磁抗扰度性能评价  

APD Based Evaluation of Electromagnetic Immunity of HSR Wireless Communication

作　　者：蒋昊[1,2] 肖建军 候建军 张金宝[1,2] JIANG Hao;XIAO Jianjun;HOU Jianjun;ZHANG Jinbao(School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, China;Beijing Engineering Research Center of EMC and GNSS Technology for Rail Transportation, Beijing 100044, China)

机构地区：[1]北京交通大学电子信息工程学院,北京100044 [2]北京市轨道交通电磁兼容与卫星导航工程技术研究中心,北京100044

出　　处：《铁道学报》2019年第4期96-101,共6页Journal of the China Railway Society

基　　金：国家自然科学基金(U1734203;61631013)

摘　　要：高速铁路专用无线通信承载大量列控信息传输业务,是高速铁路系统安全高效运营的关键。当无线通信传输受到电磁骚扰影响时,骚扰信号和无线通信信息传输误差之间的定量关系一直是研究的难点。基于骚扰信号幅度概率分布测试结果,通过定量分析无线通信信息的传输误差,提出一种预测无线通信抗电磁干扰性能的方法。仿真和实测结果表明,该方法可以实现无线通信抗电磁干扰性能的准确评价;同时,提出的方法与无线通信采用的调制方式和编码无关,具有更广泛的应用前景。High-speed rail dedicated wireless communication carries a lot of train control information transmissions, which is of significance to the safe and efficient operation of high-speed rail system. When wireless transmission is affected by electromagnetic disturbance, it has always been difficult to determine the quantitative relationship between the disturbance signal and error performance of wireless transmission. Based on the measurements of amplitude probability distribution of the disturbance signal, a method was proposed to predict the anti-electromagnetic interference performance of wireless communication through quantitative analysis between the disturbance signal and error performance of wireless transmission. The simulation and test results show that this proposed method can accurately evaluate the anti-electromagnetic interference performance of wireless communication. Meanwhile, the proposed method, independent of the modulation and coding mode of wireless transmissions, has a wider application prospect.

关 键 词：电磁抗扰度 幅度概率分布 无线通信 高速铁路 

分 类 号：TN929.5[电子电信—通信与信息系统] U285[电子电信—信息与通信工程]