航迹关联不确定度的表示  

Expression of Track Correlation Uncertainty

作　　者：陈世友[1] 肖厚[1] 刘颢[1] 

机构地区：[1]武汉数字工程研究所,湖北武汉430074

出　　处：《电子学报》2011年第7期1589-1593,共5页Acta Electronica Sinica

基　　金：国防预研基金(No.51306030201)

摘　　要：本文给出了航迹关联不确定度的定义,解释了航迹关联不确定度与信息不确定性的香农熵度量和哈特利度量之间的关系,简述了航迹关联不确定度在信息融合过程中的作用,提出了航迹关联不确定度评定方法应满足的五个基本要求,给出了一种航迹关联不确定度评定方法.仿真结果表明,航迹关联不确定性是能度量的,所提出的评定方法能够正确反映目标间隔距离、传感器测量误差、航迹关联的正确性等与航迹关联不确定度之间的关系;而且,对于相同的关联判决结果,无论传感器是否存在系统误差,应用本文提出的评定方法,同一航迹关联对的航迹关联不确定度评定结果几乎相同.The measure of track correlation uncertainty was defined and was compared with the Shannon entropy measure and Hartley measure of information uncertainty.Then,the usage of track correlation uncertainty was expressed.Lastly,the requirements and a mathematic model for evaluating the track correlation uncertainty were proposed.Simulation results show that the track correlation uncertainty is measurable and can be correctly evaluated.The proposed evaluation method can quantitatively describe the effects of target separations,sensor measurement errors,correctness of track correlation,etc.to the track correlation uncertainty very well.Moreover,to the same input of correlation results,the proposed evaluating method can output almost the same evaluating results of track correlation uncertainty for the same correlated track pairs,no matter the sensors have systematic errors or not.

关 键 词：多传感器 数据融合 不确定度评定 航迹关联 

分 类 号：TN957[电子电信—信号与信息处理]