一种结合时差信息的测向定位虚假点消除算法

多测向站多目标交叉定位时存在定位虚假点问题,随着测向站和目标数目的增加,虚假点数量急剧增加,当测向误差较大时,正确关联率很低。针对这一难题,文中提出了一种结合时差信息的定位虚假点消除新算法,在利用测向站获取的方位角信息进行交叉定位的基础上,结合到达时差信息计算测向站之间测向数据的相似度,依据相似度最大的准则进行数据关联。仿真结果表明,改进后算法的正确关联率明显提高,从而能够更有效地消除虚假定位点。

An Algorithm for Eliminating Location Ghost Combined with TDOA Information

The ghost problem exists in multi-DF station multi-target crossing-location.The number of ghost increases rapidly with the number of DF station and target.It has a very low correct association probability when the DF error is comparatively large.Aimed at this problem,the improved algorithm combined with TDOA information to eliminate ghost was presented.On the basis of crossing-location using azimuth angle information,the data comparability between DF stations was computed by the algorithm combined with TDOA...