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中文摘要：
研究了在组网雷达存在系统误差情况下的目标航迹关联问题,理论分析了雷达系统误差对目标航迹的影响,并将该影响表示为目标航迹的旋转和平移量。在此基础上,提出了一种基于傅里叶变换的系统误差配准前航迹对准关联算法,该算法将组网雷达的航迹数据看做为一种整体信息,采用傅里叶变换理论来估计和补偿组网雷达目标航迹数据到融合中心航迹数据的相对旋转量和平移量,将雷达网中雷达上报的目标航迹数据对准到融合中心,从而不依赖于估计雷达网系统误差,实现了误差配准前的航迹准确关联,能够为后端的系统误差配准提供可靠的关联目标航迹数据。
英文摘要：
This article makes a study of target track correlation with system errors existing in a radar network,analyzes theoretically how system errors affect the detected tracks of targets,and expresses the effect caused by radar system errors as rotation and mass motion between target tracks from radars. Starting from the analysis,a track registration-correlation algorithm prior to registration based on Fourier transform is presented. The algorithm describes the target track data from each radar as entile information,estimates and compensates the rotation and mass motion between the target tracks from the netted radars and fusion center by using the Fourier transform,and aligns the track data of the targets provided by the radars in the network with the fusion center,so the algorithm can associate the track accurately without prior estimation and registration of the system errors in radar network,and can provide reliable associated target tracks for later registration.
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