The Applied Research Of High-speed Railway Electromagnetic Environment Of GSM-R System Test And Interference Analysis

In recent years with development of high-speed railway construction， Chinahas become the world’s longest operating mileage，the highest running speed，thelargest country in the building. Due to the high speed railway train operation speedof over200km/h (many lines of more than300km/h)， the former communicationscheduling and train control mode can not meet the requirement， so the EuropeanGSM-R (GSM for Railways) system was introduced into China as a specialrailway digital mobile communication system. But in the railway communicationnetwork is in operation， the electromagnetic interference potential will seriouslyaffect the service quality of network communication of the GSM-R， and even leadto the disruption of high-speed railway communication. Therefore， The GSM-Rsystem was tested by electromagnetic environment， electromagnetic environmentautomatic test system to find out the possible sources of interference andinterference analysis according to the test data is very necessary.This paper first introduced the special communication system in railway toWest Railway as an example (GSM-R) constitute the basic module， base stationconstruction site basis and the use of a dedicated band of railway communicationsystem， analyzed the external disturbances and internal interference in GSM-Rsystem. Introduced the basic steps of the method，the electromagnetic environment test the necessity and presents the test process standards and required testinstrument.Finally introduced the automatic test and analysis software forelectromagnetic environment according to design test method and interferenceanalysis methods of electromagnetic environment of the GSM-R system andimplementation. Through the practical application of the software testing to BaoXi， Xi Bao high-speed railway in electromagnetic environment， verify theautomatic test software design has significant effect on improving the timelinessand accuracy of the GSM-R system of electromagnetic environment test ofelectromagnetic environment. The research results of this thesis has practicalvalue for rapid， accurate， and reliable high-speed railway GSM-Relectromagnetic environment test， for the realization of other automaticelectromagnetic environment test pilot station has an important reference value.