论文部分内容阅读
选取450 MHz附近频段为典型研究频段,对该频段Argos系统卫星气象业务和铁路列调系统进行干扰共存分析.针对气象卫星对火车、气象卫星对火车站、火车站对气象卫星地球站、火车对气象卫星地球站这4种可能存在的干扰情况,使用实际系统参数以及天线方向图,结合Argos气象卫星的轨道特征,分析了干扰共存下需要的隔离距离和气象卫星地球站的协调区域.最后给出了仿真结果,得出4种干扰情况下的隔离度和隔离距离.
The frequency band around 450 MHz is selected as a typical research frequency band to analyze the co-existence of interference between the satellite meteorological service of Argos system and the railway alignment system in this band. For meteorological satellites to train, meteorological satellite to train station, train station to meteorological satellite earth station, train pair Meteorological satellite earth stations, the actual distance between the satellite and the meteorological satellite earth station is calculated based on the orbital characteristics of the Argos meteorological satellite using the actual system parameters and the antenna pattern. Finally, The simulation results show that the four kinds of interference isolation and isolation conditions.