基于TransUNet的机动微弱目标智能检测前跟踪算法  

Intelligent TBD algorithm for maneuvering weak targets based on TransUNet

作　　者：武星蕊 彭锐晖 孙殿星 谭顺成 张一泓 韦文斌 WU Xingrui;PENG Ruihui;SUN Dianxing;TAN Shuncheng;ZHANG Yihong;WEl Wenbini(Qingdao Innovation and Development Center,Harbin Engineering University,Qingdao 266000,China;College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China;Information Fusion Research Institute,Naval Aviation University,Yantai 264001,China)

机构地区：[1]哈尔滨工程大学青岛创新发展中心,青岛266000 [2]哈尔滨工程大学信息与通信工程学院,哈尔滨150001 [3]海军航空大学信息融合研究所,烟台264001

出　　处：《航空学报》2024年第12期254-268,共15页Acta Aeronautica et Astronautica Sinica

基　　金：山东省自然科学基金面上项目(ZR2020MF015);航天科技集团稳定支持项目(ZY0110020009)。

摘　　要：隐身技术的发展和运用给雷达目标探测带来了极大的挑战,检测前跟踪技术作为微弱目标探测的重要技术方向之一,常被用于雷达探测中,但传统的检测前跟踪算法计算量大、受目标运动模型限制,难以有效检测各种不同运动状态的机动目标。针对该问题,提出基于TransUNet的微弱目标智能检测前跟踪算法,算法不受任何运动模型限制,可以有效识别各种运动状态的机动目标。首先,利用目标运动轨迹的空-时相关性特征,基于TransUNet模型设计了一种适用于不同运动状态的机动微弱目标粗检测算法,实现微弱机动目标的初步检测;然后,利用初步检测结果对目标量测进行区域搜索,实现微弱机动目标点迹的回溯;最后,针对低信噪比情况下初步回溯点迹的漏检问题,利用部分成功检测点迹的辅助信息,结合最佳抛物线值函数实现目标点迹的精细检测和航迹的完整回溯。仿真试验验证了本方法能够对多种运动状态的微弱机动目标实现有效检测。The development and application of stealth technology have brought great challenges to radar target detec-tion.As one of the important technical directions for weak target detection,the Tracking-Before-Detection(TBD)technology is often used in radar detection.However,the traditional TBD requires a large amount of computation and is limited by target motion models,making it difficult to effectively detect maneuvering targets in various motion states.To address this issue,a TransUNet based intelligent TBD algorithm for weak targets is proposed.The algorithm is not limited by any motion model and can effectively identify maneuvering targets in various motion states.Firstly,utilizing the spatio-temporal correlation characteristics of the target motion trajectory,a rough detection algorithm for maneuvering weak targets in different motion states is designed based on the TransUNet model to achieve preliminary detection of weak maneuvering targets.Then,the preliminary detection results are used to perform regional search for the target measurement,and achieve backtracking of weak maneuvering target points.Finally,to address the problem of missed detection in preliminary backtracking points at low Signal-to-Noise Ratio(SNR),the auxiliary information of partially successfully detected points,combined with the Optimal Parabolic(OP)value function,is utilized to achieve precise detection of target points and complete backtracking of tracks.Simulation experiments have verified that this method proposed can effectively detect weak maneuvering targets in various motion states.

关 键 词：检测前跟踪 微弱目标 TransUNet网络 空-时相关性特征 目标检测 最佳抛物线值函数 

分 类 号：V243.2[航空宇航科学与技术—飞行器设计] TN957[电子电信—信号与信息处理]