一种基于多次单点定位的多目标定位算法

摘要

To deal with the failure problem of statistical average processing based on multiple single-point positioning points in the case of multiple targets,this paper presented a new multi-target location method by position information field.Firstly,this algorithm analyzed the location precision of measuring two-dimensional direction method for aerial observation platform to emit-ter on the ground,and obtained the covariance matrix.Then,the algorithm got the position information field function of the emitter through the choice of different kernel function.At last,this algorithm could estimate the position and number of the emitters at the same time through the grid search technique.Simulation results verify the effectiveness of the algorithm on multi-target location based on multiple location points and the better localization performance of the Gaussian type kernel func-tion.%针对多目标情况下基于多次单点定位的统计平均处理失效问题，提出了一种新的多目标位置信息场定位算法。首先对二维角测量定位的精度进行了分析，推导了定位误差的协方差矩阵；而后选取不同的核函数，得到基于多次单点定位的目标位置信息场函数，通过网格搜索，实现对目标位置和数目的同时估计。仿真实验结果验证了该方法对基于多次单点定位的多目标定位的有效性以及高斯型核函数定位性能较好的结论。