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兵工学报 ›› 2014, Vol. 35 ›› Issue (1): 120-127.doi: 10.3969/j.issn.1000-1093.2014.01.018

• 论文 • 上一篇    下一篇

基于样条函数表征目标运动轨迹事后数据融合方法研究

宫志华1, 周海银2, 郭文胜1, 徐旭1   

  1. (1.中国白城兵器试验中心, 吉林 白城 137001; 2.国防科学技术大学 理学院, 湖南 长沙 410073)
  • 收稿日期:2013-05-03 修回日期:2013-05-03 上线日期:2014-03-18
  • 作者简介:宫志华(1975—), 男, 高级工程师

Data Fusion Algorithm for Target Trajectory Determination Based on Spline Function Representation

GONG Zhi-hua1, ZHOU Hai-yin2, GUO Wen-sheng1, XU Xu1   

  1. (1.Baicheng Ordnance Test Center of China, Baicheng 137001, Jilin, China;2.School of Science, National University of Defense Technology, Changsha 410073, Hunan, China)
  • Received:2013-05-03 Revised:2013-05-03 Online:2014-03-18

摘要: 针对靶场小型、机动目标多体制跟踪定位模式,提出一种基于样条函数描述目标运动轨迹并进而转换,实现以其为基函数对测控设备测元进行表征的数据融合方法。在最小二乘准则下,采用非线性最优化方法对样条函数最优节点分布进行搜索,使自由节点分布适应目标运动特性,极大减小截断误差,联合误差方程待估参数被极大压缩,计算效率提高。通过工程应用分析,该方法不仅目标轨迹参数计算精度高,而且能够准确自校准各测元系统误差。

关键词: 信息处理技术, 数据融合, 非线性函数, 模型误差, 样条函数, 最优节点

Abstract: A data fusion algorithm for target trajectory determination based on spline function representation is presented. Under least squares criterion, a nonlinear optimization strategy is applied to search the optimal spline nodes according to different trajectory characteristics. The truncation error can be eliminated and the estimated parameters in the fusion model can be reduced greatly. Therefore, the computational efficiency and estimation accuracy for the trajectory parameters will be enhanced. Finally, the calculation show the validity of the proposed algorithm, and the system errors for each measuring data can be compensated accurately.

Key words: information processing, data fusion, non-linear function, model error, spline function, optimal node

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