视频合成孔径雷达(SAR)是一种融合了SAR 和视频成像技术的先进雷达成像系统,不仅具有传统SAR 成像的特点,还可以实时获取目标丰富的动态信息,在运动目标检测和跟踪上具有明显优势。运动目标在视频SAR 序列中表现出明显的阴影特征,并且阴影特征能够近似反映目标的真实位置,具有定位精度高、检测概率高等优势,这使得基于阴影的动目标检测与跟踪技术成为当前视频SAR 领域的研究热点之一。文中对目前基于阴影的视频SAR 动目标检测与跟踪方法进行梳理总结,对比各方法的性能,分析目前视频SAR 动目标检测与跟踪方法的优势和存在的不足,明确视频SAR 运动目标检测与跟踪亟需解决的问题。

Video SAR is an advanced radar imaging system that integrates SAR and video imaging technologies. It not only has the characteristics of traditional SAR imaging, but also can acquire rich dynamic information of the target in real time, which has obvious advantages in moving target detection and tracking. The moving target shows obvious shadow feature in the video SAR sequences, and the shadow feature can approximately reflect the real position of the target. It has the advantages of high positioning accuracy and high detection probability, which makes the moving target detection and tracking technology based on shadow become one of the current research hotspots in the field of video SAR. This paper summarizes the current shadow-based video SAR moving target detection and tracking methods, compares the performance of various methods, analyzes the advantages and shortcomings of current video SAR moving target detection and tracking methods, and clanifies the urgent problems in video SAR moving target detection and tracking.

TN957. 52

上海自然科学基金资助项目(21ZR1444300)