一种排除无源交叉定位虚假交点的新方法

消除测向线虚假交点是无源交叉定位的关键技术，目前已经研究了多种解决这一问题的方法，如最小距离法、最大似然法和周期谱相关法，但它们或有效性低，或计算量大，或计算复杂性高，并存在要求某些先验信息等缺点。本文提出了一种排除无源交叉定位虚假交点的新方法，称为基准线最小距离法。这种方法只需要测向信息，不需要任何其它先验信息。计算机模拟结果表明本文提出的方法是有效的，且计算量适中。

A New Method for Eliminating False Intersection Points in Passive Cross Location

Eliminating the false intersection points on direction finding lines for emitting sources is a key technique in passive cross location. Many methods for solving this problem, such as least distance method, maximum likehood method and cyclespectrum correction method, have been developed in the past. But they have low validity, or more burden, or more complexity and need some prior knowledge. In this paper, a new method for eliminating the false intersection points is proposed and refered as the baseline least distance method. The method needs no any prior knowledge, expects the directions of emitting sources. The simulation results show that this method proposed in the paper has high validity and moderate computational burden.