基于GPS导航系统的伪卫星信号发射器设计

摘要

The pseudolite technology can enhance the accuracy of satellite navigation,and also be performed separately.The pseudolite signal transmitter is the foundation of implementing pseudolite positioning.By studying pseudolite signals,this paper designs the single pseudolite signal emitter based on GPS navigation system,and performs performance test.The experimental results show that the design of the pseudolite signal trans⁃mitter can produce real⁃time pseudolite signal,of which the spectrum is consistent with theoretical value and the pseudolite signal can be captured and tracked by receiver,so this transmitter can meet the require actual demand.%伪卫星技术能够增强卫星导航定位精度，并能够进行单独定位。伪卫星信号发射器是实现伪卫星定位的基础，通过对伪卫星信号的研究，设计了基于GPS导航系统的单体伪卫星信号发射器，并对其性能进行测试。实验结果表明，设计的伪卫星信号发射器能够实时产生伪卫星信号，并且信号频谱与理论相符，能够被接收机捕获跟踪，满足实际使用需求。