基于互信息的航迹对准关联算法  

A Track Alignment-Correlation Algorithm Based on Mutual Information

作　　者：熊伟[1,2] 高峰[1] 王海鹏[1] 

机构地区：[1]海军航空工程学院信息融合技术研究所,山东烟台264001 [2]中国航天科工集团四院,北京100854

出　　处：《电光与控制》2012年第5期11-15,19,共6页Electronics Optics & Control

基　　金：国家自然科学基金(60801049);国家自然科学基金重点基金(61032001)

摘　　要：针对系统误差对目标航迹的影响,研究了在组网雷达存在系统误差情况下的航迹对准关联问题,并将该影响表示为目标航迹的旋转量和平移量;提出一种基于互信息的系统误差配准前航迹对准关联算法,该算法采用最大互信息理论来估计目标航迹数据的相对旋转量和平移量,将雷达组网中雷达上报的目标航迹数据对准到融合中心,从而避开了估计雷达组网系统误差,实现了误差配准前的航迹对准关联,能够为后端的系统误差配准提供可靠的关联航迹数据。Considering the effect of systematic error on target track,we studied the problem of track correlation with systematic errors in radar network.The effect caused by the systematic errors was expressed as rotation and translation of the target track.Prior to registration,a track alignment-correlation algorithm based on Mutual Information（MI） was presented,which could estimate the relative rotation and translation by using the muximum MI theory.The track data of targets provided by radars in the network was aligned to the fusion center,so the algorithm can associate the track accurately without registration,and can provide reliable associated tracks for the later registration.

关 键 词：雷达组网 系统误差配准 航迹对准关联 互信息 

分 类 号：V271.4[航空宇航科学与技术—飞行器设计]