高脉冲重复频率雷达弱小机动多目标TBD技术研究

针对高脉冲重复频率（HPRF）雷达检测和跟踪弱小机动多目标存在的难点问题，研究HPRF雷达弱小机动多目标检测前跟踪（TBD）技术，实现测距模糊下对弱小机动多目标的有效检测和稳健跟踪。主要包括：1）针对测距模糊和目标机动造成TBD无法有效积累的问题，提出基于概率假设密度滤波（PHDF）的HPRF雷达弱小机动多目标TBD方法，解决测距模糊下现有方法难以有效检测和跟踪弱小机动多目标的不足；2）针对测距模糊和距离分辨较高时目标会扩展到多个距离分辨单元的问题，提出基于PHDF和“同源”目标融合的HPRF雷达弱小机动多目标TBD方法，解决测距模糊下弱小机动多目标个数估计不准、跟踪精度较差的难题；3）针对测距模糊和目标个数不确定造成乱序观测和当前目标状态无法匹配的问题，提出基于PHDF和子量测更新的HPRF雷达弱小机动多目标自适应TBD方法，实现测距模糊下多雷达系统乱序观测的有效利用和直接更新。

To solve the problems of multiple weak maneuvering targets detection and tracking with the high pulse repetition frequency(HPRF) radar, a HPRF radar multiple weak targets TBD method is studied, which can realize the reliable detection and stable tracking of multiple weak maneuvering targets with range ambiguity. The main contents include: 1) aiming at the problem that the TBD can not accumulate effectively due to range ambiguity and targets maneuvering, a probability hypothesis density filter(PHDF) based HPRF radar multiple weak maneuvering targets TBD method is proposed, which overcomes the drawbacks that the existing methods can not effectively detect and track multiple weak maneuvering targets with range ambiguity; 2) aiming at the problem that targets will be extended to multiple range resolution units due to range ambiguity and high range resolution, a PHDF and consanguineus targes fusion based HPRF radar multiple weak maneuvering targets TBD is proposed, which solves the problems such as wrong targets number estimation and low target tracking accuracy of weak maneuvering targets with range ambiguity; 3) aiming at the problem that the out of sequence measurements do not match the current states of targets due to range ambiguity and target number uncertainty, a PHDF and sub-measurement updating based HPRF radar multiple weak maneuvering targets adaptive TBD is proposed, which enables the multiple radars joint detection and tracking system effectively utilizing and directly updating out of sequence measurements with range ambiguity.