TDOA无源定位系统的原理与影响因素分析

Principle and Influencing Factors Analysis of TDOA Passive Location System

介绍了TDOA无源定位系统的基本原理和技术模型,定性地分析了影响TDOA无源定位系统定位精度的影响因素。实地部署了TDOA无源定位系统并进行了定位实验,验证了所分析的目标信号特性和布站形式对定位精度的影响。说明了在合理布置监测传感器站点的场景下,即使对窄带信号,TDOA无源定位系统也能给出较好的定位结果。

This paper introduces the basic principle and technical model of TDOA passive locationsystem, and qualitatively analyzes the factors influencing the positioning accuracy of TDOA passivepositioning system. We deployed the TDOA passive location system and the positioning experiment iscarried out to verify the influence of the target signal characteristic and the station layout form on thepositioning accuracy. The results show that in the reasonable layout of the monitoring sensor station,the TDOA passive location system can give better positioning results even if the target signal is nar-rowband signal.