本文作的工作是利用信号仿真器仿真GPS数字中频信号，并借助这些仿真信 号完成对GPS信号的捕获和跟踪性能的研究。

摘要描述gps这个系统的matlab仿真,对其中捕获和跟踪的仿真比较详细-Gps the system summary descr iption of the matlab simulation, capture and tracking of them in more detail the simulation

实现了gps软件接收机的信号产生，捕获和跟踪，采用改进的捕获算法和跟踪算法。-Realize the GPS software receiver signal generation, capture and tracking, an improved capture algorithm and tracking algorithm.