摘要
数字信号捕获是软件GPS接收机的重要组成部分,同时也影响软件GPS接收机的工作性能指标。通过对GPS信号结构的分析后,通过对GPS导航信号进行仿真,分别在时域和频域范围对信号搜索捕获进行了算法仿真,根据信号搜索捕获理论结合仿真试验结果,对时域/频域两类处理方法进行了分析和比较,不同捕获方法各有优点,针对不同的情况应采用不同的算法或者对不同的算法进行适当的组合以实现快速捕获的目的。
Signal acquisition is an important part of software GPS receiver and also has an influence on its working performance.After the analysis of the GPS signal configuration,this article gives the simulation of the GPS signal.Simulation of signal search and acquisition is made in time-field and frequency-field respectively.With the theory of signal search and acquisition,according to the result data of simulation experiment,methods of time-field and frequency-field are compared and analyzed.Each algorithm has its own strong point,so appropriate algorithm or a right combination should be used for different situations.
出处
《计算机仿真》
CSCD
北大核心
2010年第1期32-35,共4页
Computer Simulation
