首先,介绍了二维和三维时差定位系统的基本原理;然后,从这一原理出发,对三站二维和四站三维时差定位系统的模糊区和无解区进行仿真分析,根据仿真结果得出了其分布与布站形式、目标高度及时差测量误差的关系;最后,对几种布站定位模糊、无解的问题,提出了一些消除方法和解决方案。

The basic principle of 2D and 3D TDOA location system is introduced first. Based on this principle, simulation and analysis is carried out for the ambiguity and non-solution phenomena of the 3-sation 2D location system and 4-sation 3D TDOA location system. According to the results of simulation, the correlation of the ambiguity and non-solution areas is received with the placement of stations, target height and measuring error. Finally, some effective methods are proposed to solve the problems such as the ambiguity and non-solution phenomena.

TN953+.7