卫星定位系统(GPS)是解决城市轨道交通中列车安全快速运行的有效手段。采用Matlab/Simulink软件,仿真GPS中频数字信号,并将信号送入PC机.编码实现捕获跟踪算法;通过该方法,验证捕获跟踪算法的可行性。
GPS (Global Position System) is an effective way employed in urban rail transit systems to guarantee the safe and fast running of trains. Adopting Matlab/Simulink software to simulate GPS signals and inputting these signals into the PC,authors of the paper realized the acquisition and tracking algorithm and verified the algorithm.