GPS中频信号的建模与仿真，通过分析GPS信号结构，建立数学模型进行仿真。-GPS intermediate frequency signal s the modeling and simulation, through analyze the GPS signal structure, establishes the mathematical model to carry on the simulation.

GPS数字中频信号仿真及捕获验证，通过搭建GPS数字中频信号模型，仿真分析并捕获验证。-The GPS digit intermediate frequency signal simulation and the capture confirmation, through build the GPS digit intermediate frequency signal model, the simulation analyze and catch the confirmation.

基于多卫星的GPS中频信号生成方法，通过分析单卫星信号的模拟搭建，改进为多卫星的实现方法。-Based on the multi-satellite s GPS intermediate frequency signal production method, through analyzes the single satellite signal the simulation build, improves realizes the method for the multi-satellites

使用matlab来仿真，是卫星导航电文调制，扩频后，产生.mat文件-Matlab simulation satellite navigation message modulation, spreading generate. Mat file