基于TDOA的双基无源定位方案

Study on the Bibasic Passive Positioning Scheme based on TDOA

多站时差定位是一种较精确的定位方法,通过处理3个或3个以上测量站采集的信号到达时间来对辐射源定位。论述了多站时差无源定位的基本原理,提出了一种基于陆空平台相结合的TDOA(Time Difference Of Arrival)双基无源定位方案。主要论述了时差双基无源定位的基本原理,以及观测站与空中目标的同步、地面观测站的选择、误差校正等主要问题的实现方案,并给出了参与对目标视察定位的地面观测站的选择算法。此方案定位算法及定位精度仍在研究阶段。

Multiple stations TDOA positioning scheme is a precise position method. T is carried out by processing the signal gathered by the stations. Based on the introduction about TDOA passive positioning algorithm, a bibasic passive positioning scheme based on TDOA is put forward. This paper introduces the principle of bibasic passive positioning scheme based on TDOA ,synchronization between the observation stations on the air target, the selecting of the terrestrial stations, error correction . The positioning algorithm and positioning precision are still in research.