车载GSM-R外置抗干扰设备
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摘要
我国铁路GSM-R使用的E-GSM频段,极易受中国移动、中国联通等公网通信基站的干扰,影响GSM-R网络的系统服务质量和可用性,导致CTCS-3级列控系统降级、CIR语音通信掉话等。为此,在车载设备外增加外置干扰滤波设备进行干扰防护,有效地提高了车载无线通信设备的抗干扰能力。
The GSM-R communication system for China Railway adopts E-GSM frequency band,which may be greatly affected by the blocking and inter-modulation interference caused by public communication network,such as China Mobile and China Unicom.These interferences frequently lead to the degradation in CTCS-3 systems and the call drops in CIR voice communication.In view of the above interference,We propose interference protection by add a adding external interference filter outside the on-board equipment.The experimental results validates that the proposed design significantly improve the anti-interference performance of vehicle wireless communication equipment.
The GSM-R communication system for China Railway adopts E-GSM frequency band,which may be greatly affected by the blocking and inter-modulation interference caused by public communication network,such as China Mobile and China Unicom.These interferences frequently lead to the degradation in CTCS-3 systems and the call drops in CIR voice communication.In view of the above interference,We propose interference protection by add a adding external interference filter outside the on-board equipment.The experimental results validates that the proposed design significantly improve the anti-interference performance of vehicle wireless communication equipment.
引文
[1]钟章队.铁路数字移动通信系统(GSM-R)无线网络规划与优化[M].北京:北京交通大学出版社,2012.
[2]顾继慧.微波技术[M].北京:科学出版社,2004.
[3]曹毅,王光明.一种新型微带DGS低通滤波器设计[J].空间电子技术,2007(3):50-53.
[4]粱昌洪,谢拥军,管伯然.简明微博[M].北京:高等教育出版社,2006.
[5]林为干.微波网络[M].北京:国防工业出版社,1978.
[2]顾继慧.微波技术[M].北京:科学出版社,2004.
[3]曹毅,王光明.一种新型微带DGS低通滤波器设计[J].空间电子技术,2007(3):50-53.
[4]粱昌洪,谢拥军,管伯然.简明微博[M].北京:高等教育出版社,2006.
[5]林为干.微波网络[M].北京:国防工业出版社,1978.