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.
出处
《电光与控制》
北大核心
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)
关键词
雷达组网
系统误差配准
航迹对准关联
互信息
radar network
systematic error registration
track alignment-correlation
mutual information
