Video Synthetic Aperture Radar Techniques: A retrospective and prospective overview

Video synthetic aperture radar (VideoSAR) describes detailed spatial-temporal echo-location signals as representative of the emerging microwave camera for dynamic observation in remote sensing community. Over the past decade, extensive techniques have sprung up for efforts related to this topic. This article summarizes a bird’s-eye overview of VideoSAR techniques into three categories, with emphasis on typical system development, persistent frame imaging, and information extraction. Furthermore, potential future directions of VideoSAR technologies are provided on possible application scenarios.