蜂窝网络TDOA定位方法的Fang算法研究及仿真

ellular wireless location service is a new mobile value-added service with a good market future. Its basic principle is to implement mobile user location through estimating charactistics parameters relative to position, including time-of-arrival, time-difference-of-arrival, direction-of-arrival, ect. TDOA wireless locating method based time measurement has play an important role in many applications such as mobile phone location, passive radar location, lightning location, GPS navigation, etc. This paper describes and analyzes a typical method of positioning algorithm for the mobile station TDOA location in the wireless cellular network -Fang algorithm. Firstly, it introduced the principles of TDOA location and methods of TDOA hyperbolic model. Then it introduced the basic principles of the Fang algorithm. And using MATLAB simulation platform of TDOA Location, it makes computer simulations of Fang algorithms for different base stations . By comparing the relationship between location error and the radius of the area as well as the positioning error and the location of the mobile station, it analyzed the performance of the algorithm.