机载预警雷达海面多目标航迹起始算法研究

Track Initiation of Sea Surface Multi-Targets for Airborne Radar

针对海面目标密集及存在量测噪声起伏的特点,提出了一种适用于机载预警雷达的海面多目标航迹起始算法。该算法利用三帧量测数据构建了具有延迟判决结构的初始波门,克服了传统初始波门易出现航迹分裂与合成问题,并通过角度约束与修正的Hough变换改进了传统的相关波门结构。此外,为了克服最近邻关联准则缺陷,引入了最大似然的关联准则。仿真结果表明所提算法可实现机载预警雷达对海面多目标的有效跟踪。

For solving the problems of closely spaced targets and glint noise in the tracking of sea surface multi-targets,a new track initiation algorithm for airborne radar is proposed.The algorithm utilizes the measurement data of three frames to construct a delay logistic initiation gate,which overcomes the track splitting and compositing problems.Through angle constraint and modified Hough transform,the algorithm amends the structure of the traditional association gate.In addition,the algorithm adopts the maximum likelihood association method to overcome the shortcoming of the nearest neighbor method.Simulation results verify the validity of the novel algorithm.