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应用领域:信号产生以及侦测和分析挑战:随着技术的进步,城市轨道交通系统的地面-列车之间通信开始采用无线传输的方式,但是目前对车-地之间的无线通信设备尚缺乏理想的测试手段。应用方案:本方案用来模拟车-地之间无线通信的衰落信道,不同无线设备通过信道仿真器进行收发,通过测试无线设备的EVM、数据通信的吞吐量和丢包率来测试比较无线设备的性能。使用的产品:使用R&S的信道仿真器,信道仿真器由频谱分析仪FSQ和矢量信号发生器SMU200A组成。
Applications: Signal Generation and Detection and Analysis Challenges: As technology advances, the ground-rail communication between cities in the urban rail transit system has begun to adopt wireless transmission methods. However, there is currently a lack of vehicle-to-ground wireless communication equipment The ideal test method. Application scheme: This scheme is used to simulate the fading channel of wireless communication between car and ground. Different wireless devices send and receive through channel emulator. By testing the wireless device’s EVM, data communication throughput and packet loss rate to test the wireless device Performance. Products Used: Channel simulator with R & S, channel simulator consists of spectrum analyzer FSQ and vector signal generator SMU200A.