基于空基双平台的多目标假点剔除算法

为解决多目标情况下,存在虚假定位的问题,对基于空基双平台的多目标假点剔除算法进行了研究,给出了基于最小角度门限判决的多目标无源定位算法。首先用“最小距离法”交叉定位算法求出目标位置的估计值,并算出该估计值相对于观测平台的俯仰角;其次算出该角度与目标的实测俯仰角的差值;最后用所得差值和确定的门限进行比较,将大于门限的目标判为虚假点排除。仿真结果表明：该方法能大大提高关联正确率,而且计算量小,可以满足工程需要。

An Algorithm of Multi-Target Elimination of False Intersection Points Based on Two Airborne Platforms

This article studies a method of eliminating the false localization of multiple targets on the basis of air based double flat roof, and gives a passive localization method based on min-angle threshold judgment. In this method first the "least distance method" cross-localization algorithm is used to work out the estimation value of the target position, and work out the pitch angle of the value compared with the value of main scout. Then, the D-value between the foregoing value and measured pitch value of main scout is worked out. Finally, by comparing the certain threshold with the D-value, the false dot which exceeds the threshold is eliminated. The result of simulation shows that using the method can enhance the correct probabilities of data association and reduce the calculation times which can meet the need of project.