基于雷达一维距离像的航迹相关方法

Track correlation based on one dimensional range profiles

为提高灵巧、多模高分辨雷达跟踪目标的能力 ,利用宽带雷达一维距离像可实现快速辨别目标的特性 ,提出了高分辨雷达在多目标跟踪过程中 ,用一维距离像进行航迹相关的方法 .定义了参数匹配分 ,用它讨论相同或不同目标之间距离像的相关性 .利用距离像匹配分均值和方差信息确定了航迹相关的判决门限和最大姿态角的变化量 .三种真实飞机目标的实验结果表明 ,在一定姿态角范围内 ,可以精确判别出目标的航迹 .同时也证明了通过加密采样间隔 ,可提高航迹关联的准确性 .

Presents the study of multiple target track correlation for the purpose of improving track ability of smart and multi mode radar by using range profiles from the high resolution radar, which can be used to quickly classify targets, and the definition of parameter match score for investigation of similarity between targets, and points out the mean and standard deviations of the match score are used to determine threshold and maximum aspect variation size, and concludes from experimental results obtained with three real aircraft that this method can be used to accurately recognize the target tracks when target aspect variation size is smaller, and the correctness of track correlation can be improved by decreasing sample interval.