航迹起始算法研究  

Study on Approaches for Track Initiation

作　　者：朱洪艳[1] 韩崇昭[1] 韩红[1] 左东广[2] 

机构地区：[1]西安交通大学电信学院综合自动化所,陕西西安710049 [2]第二炮兵工程学院,陕西西安710025

出　　处：《航空学报》2004年第3期284-288,共5页Acta Aeronautica et Astronautica Sinica

基　　金：国家重点基础研究发展规划(973)项目资助课题(2001CB309403)

摘　　要：针对传统的基于逻辑的航迹起始算法存在的弊端,分别提出了基于一步延迟思想和多假设思想的航迹起始算法。基于一步延迟思想的方法利用相邻2个采样周期的量测信息来选择用于航迹扩展的量测,从而实现航迹扩展的唯一性,可以在保证航迹起始性能的同时有效地降低存储要求。而在基于多假设思想的航迹起始算法中,在候选目标航迹的扩展阶段,采用关联矩阵拆分的办法获得当前多个可行假设,进而实现原假设的扩展与分裂,从而使得扩展后的源于各个候选目标的量测序列之间无共用量测现象。仿真结果表明了算法的有效性。Aiming at the shortcomings of traditional logic-based approach for track initiation, two approaches based on one-step delay and multi-hypothesis principle are developed respectively. In the former, two scanning measurements are used to extend the candidate track uniquely. As a result, the performance for track initiation is insured, and the memory requirement is lowered. In the latter, the multiple feasible hypotheses are obtained by separating the association matrix. The original hypothesis is extended and split. There are no common measurements among the extended measurement sequences from the different candidate targets. The simulation results indicate that these approaches perform well.

关 键 词：航迹起始 阈值检验 多假设 一步延迟 基于逻辑 

分 类 号：V243[航空宇航科学与技术—飞行器设计]