全球定位系统用户定位的数学模型

Mathematics Model of Global Positioning System for Locating Users

以卫星时钟、系统时钟、用户接收机时钟同步为条件,建立起用户接收机位置求法定性分析的基本原理;又从三者时钟非同步开始建立起用户接收机位置求解的数学模型,在线性化的基础上,用迭代法进行位置求解的定量分析,使之对全球定位系统用户定位有一个比较清晰的认识.

This article introduced basic principle of user's receiver position calculation and analysis that is based on the condition of synchronization of satellite timing;system timing and user's receiver timing.A math- ematics model is established based on above three timing factors in insynchronization condition.Also we ana- lyzed position calculation in mathematics methods.From this article the GPS receiver user's can clearly under- stand the GPS.