| As an important part of metro, communication system have made indelible contributions to the development of rail traffic,it also accelerates the development of metro technology and provides an important guarantee for the rapid rail transit, punctuality, large capacity And less noise.Today, metro communication system has developed to a number of complex integrated system including wireless communication system,Transmission System, business telephone system, private telecom system,TV supervision system, broadcasting system, time-table system, power system and other subsystems.As the wireless communications system introduce multiple systems and wide band at the same time, the public wireless communication system make use of multi-system access technology that is a multi-system access platform, which take advantage of the frequency of road and a road bridge, to join the accessed signals of a variety of operations and then introduce into a common set of days fed distribution system to achieve the purposes of making the most of the resources and saving investment. All of this leads to the problem of interference analysis when the access of wireless communication multi-system is apply to orbit traffic.In this paper, based on the study of interferece between various public wireless communication systems as well as between the public and the private wireless communication sytem when the access of wireless communication multi-system is ipply to orbit traffic, laboring the type of interferece, the causes, the impact to the system, we provide the measures and methods to solve the interence problem on project. The successful opening of Shenzhen Metro Project is introduced in this paper as a sxample to prove the accuracy of the conclusion from the analysis as well as the efficiency of the measures. What is done in this paper have very important reference value and guiding effect to communication, control and the introduction of wireless multi-systems in China’s growing metro career. |
PDF Full Text Request