基于点模式匹配的雷达航迹与航行计划匹配算法

在雷达航迹与航行计划匹配时，针对传统算法对单点信息依赖程度较高，在信息缺失、目标机动等情况下匹配效果差的问题，提出了一种基于滑窗的改进点模式匹配算法。首先，提取了雷达航迹多特征点，利用特征点集弥补单点信息的不足，通过简化匹配分数的计算，降低了点模式匹配复杂度。仿真实验结果表明，改进的点模式匹配算法显著提高了信息缺失、目标机动等情况下的匹配正确率。

A Matching Algorithm of Radar Track and Navigating Plan Based on Point Pattern Matching

By studying the matching algorithm based on radar track and navigating plan, it is found that traditional algorithm relies too much on the single-point. It always plays badly under the situation of information losses or maneuvering targets. Considering of these, an improving point pattern matching algorithm based on sliding window is proposed. Firstly, in order to cover the shortage of single-point, feature points are collected from radar tracks. Besides, the complexity of point pattern matching is reduced by simplifying the calculation of matching scores. Finally, simulation results show that the new algorithm can promote the accuracy for matching evidently under some special situations.