计算物理 ›› 2010, Vol. 27 ›› Issue (6): 823-828.

• 研究论文 • 上一篇    下一篇

Monte Carlo方法在B样条函数分频理论中的应用

王菖1, 黄寒砚2, 吴福强1   

  1. 1. 国防科技大学理学院数学与系统科学系, 湖南 长沙 410073;
    2. 军械士官学校雷达系, 湖北 武汉 430075
  • 收稿日期:2009-07-10 修回日期:2009-11-21 出版日期:2010-11-25 发布日期:2010-11-25
  • 作者简介:王菖(1985-),男,湖北武汉,博士生,主要从事数据融合与试验评估,长沙市开福区国防科大二院三队410073.
  • 基金资助:
    国家自然科学基金(60974124);航天支撑技术基金(2009-HT-GFKD)资助项目

Monte Carlo Method in B-spline Seperating Signals

WANG Chang1, HUANG Hanyan2, WU Fuqiang1   

  1. 1. Department of Mathematics and System Science, National University of Defense Technology, Changsha 410073, China;
    2. Department of Radar, Wuhan Ordnance N. C. O. Academy of PLA, Wuhan 430075, China
  • Received:2009-07-10 Revised:2009-11-21 Online:2010-11-25 Published:2010-11-25

摘要: 针对弹道参数的B样条表示问题,运用Monte Carlo方法对B样条函数分频理论进行仿真论证,得到B样条延拓节点的补充方法,并验证B样条函数逼近空间相容性定理的正确性.比较Monte Carlo方法和B样条分频算法的计算结果,说明分频算法合理.将该算法应用于外弹道跟踪测量数据的处理中,可以确定出表示弹道所需要的样条节点个数及样条节点序列的排布,有效减少待估参数个数.

关键词: Monte Carlo, 样条函数, 时频分析

Abstract: To represent a ballistic trajectory with B-spline,Monte Carlo method is used in the simulation of B-spline separating signals method.A suggestion is given on how to add external knots to the internal knots sequence.Consistency of B-spline approximation space is discussed to demonstrate the relevant theorem.Further more,B-spline separating signals method is validated by a comparison with Monte Carlo simulation.It decides efficiently exact knots sequence needed to represent a ballistic trajectory.With the knots sequence,the parameters to be estimated is greatly eliminated.

Key words: Monte Carlo, spline function, time-frequency analysis

中图分类号: