航空学报 > 2004, Vol. 25 Issue (3): 284-288

航迹起始算法研究

朱洪艳1, 韩崇昭1, 韩红1, 左东广2   

  1. 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
  • 收稿日期:2003-05-19 修回日期:2003-11-30 出版日期:2004-06-25 发布日期:2004-06-25

Study on Approaches for Track Initiation

ZHU Hong-yan1, HAN Chong-zhao1, HAN Hong1, ZUO Dong-guang2   

  1. 1. Institute of Synthetic Automation, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China;2. The Second Artillery Engineering College, Xi'an 710025, China
  • Received:2003-05-19 Revised:2003-11-30 Online:2004-06-25 Published:2004-06-25

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

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.

Key words: track initiation, threshold test, Multi-hypothesis, One-step delay, Logic-Based