阐述了时钟同步在广域多点定位系统中的重要作用,并提出用基于全球定位系统的授时接收机来实现系统时间同 步的设计思路。根据系统组成和系统精度要求,进行了系统误差分配,并分析得出系统对授时接收机的精度要求。通过 一系列的试验对授时接收机的精度和系统精度进行测试可知,基于全球定位系统的授时接收机能够满足广域多点定位系 统的时钟同步要求。

The importance of Synchronization in the wide area multilateration system is discussed in the paper. A system design is presented that timing global position system (GPS) is used for system synchronization. According to system structure and precision requirement, system error distribution is simulated and timing GPS precision requirement is obtained. Through the experimentation result of GPS precision test and the system synchronized precision test , a conclusion is that the timing GPS meet the wide area multilateration system's synchronization requirement.