多站时差定位是一种较精确的定位方法，它通过处理三个或三个以上测量站采集的信号到达时间来对辐射源定位。文中论述了多站时差无源定位的基本原理，提出了以TDOA多基站小区无源定位系统为基础构建区域定位网络的方案。论述了时差双基无源定位的基本原理，以及小区定位系统的几何布站，地面观测站对空中平台的实时精确定位算法，同步技术，区域组网与越区切换等主要问题的实现方案。

Muhiple stations TDOA positioning scheme is a precise position method. It is carried out by processing the signal gathered by the stations. This paper puts forward a method to construct a local positioning network based on the TDOA muhiple stations cell positioning system. It introduces the principle of TDOA passive positioning, synchronization technology, the placement of cell observation stations, precise positioning algorithm, network construction and hand-off between cells .

TN953.3 TN958.97