一种时空联合约束的多源航迹相似性度量模型

发布时间：2018-04-14 21:42

本文选题：航迹相似性 + 多源异步航迹　；参考：《系统工程与电子技术》2017年11期

【摘要】：针对传统方法无法有效度量多源异步航迹时空相似性的问题,该文提出了一种适用于多源异步航迹的相似性度量模型。基于时间和空间联合约束下寻找近似时空特征匹配点的思想,通过设置时间和空间阈值上寻找符合要求的匹配点,并通过空间相似函数度量匹配点的相似性,确定最优匹配点并计算多源航迹间的航迹时空相似度。实测数据表明,该模型可以有效度量异类传感器航迹的相似性,且时间性能较优。基于该模型的航迹关联算法在仿真的复杂多目标环境中的关联准确性优于现有算法,且在对海雷达误差估计中得到了应用。
[Abstract]:Aiming at the problem that traditional methods can not effectively measure the spatio-temporal similarity of multi-source asynchronous tracks, this paper proposes a similarity measurement model suitable for multi-source asynchronous tracks.Based on the idea of finding approximate spatio-temporal matching points under the joint constraints of time and space, the matching points that meet the requirements are found by setting time and spatial thresholds, and the similarity of matching points is measured by spatial similarity function.The optimal matching points are determined and the temporal and spatial similarity of tracks between multiple sources is calculated.The measured data show that the model can effectively measure the similarity of the tracks of different sensors, and the time performance is better.The track association algorithm based on this model is superior to the existing algorithms in the simulation of complex multi-target environment, and has been applied in the estimation of sea radar error.
【作者单位】：海军航空工程学院信息融合研究所;海军航空工程学院电子信息工程系;
【基金】：国家自然科学基金(61531020) “泰山学者”建设工程专项经费资助课题
【分类号】：TN958;TP212

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