Review of the development status for ViSAR techniques
Video synthetic aperture radar(ViSAR)has been widely used in many fields due to its ability to continuously observe changes in the target area.Firstly,the research trends related to ViSAR at home and abroad are reviewed,and the principles of high frame rate imaging and shadow formation of moving targets in ViSAR are analyzed.Secondly,the research progress of ViSAR systems and their processing technologies of both domestical and international is systematically elaborated,and the research progress in imaging algorithms,motion compensation algorithms,and moving target detection and tracking technologies is summarized.Finally,the current developments related to ViSAR are summarized,and potential research directions for future ViSAR technology are discussed.