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航迹起始算法研究
引用本文:朱洪艳,韩崇昭,韩红,左东广.航迹起始算法研究[J].航空学报,2004,25(3):284-288.
作者姓名:朱洪艳  韩崇昭  韩红  左东广
作者单位: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
基金项目: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。

关 键 词:航迹起始  阈值检验  多假设  一步延迟  基于逻辑  
文章编号:1000-6893(2004)03-0284-05
修稿时间:2003年5月19日

Study on Approaches for Track Initiation
ZHU Hong-yan,HAN Chong-zhao,HAN Hong,ZUO Dong-guang.Study on Approaches for Track Initiation[J].Acta Aeronautica et Astronautica Sinica,2004,25(3):284-288.
Authors:ZHU Hong-yan  HAN Chong-zhao  HAN Hong  ZUO Dong-guang
Institution:ZHU Hong-yan~1,HAN Chong-zhao~1,HAN Hong~1,ZUO Dong-guang~2
Abstract: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 one, two scan 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 efficiently. In the latter one, the multiple feasible hypotheses are obtained by separating the association matrix. Furthermore, the original hypothesis is extended and split. As a result, there are no common measurements among the extended measurement sequences from the different candidate targets. The simulation results indicate that the presented approaches perform well.
Keywords:track initiation  threshold test  Multi-hypothesis  One-step delay  Logic-Based
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