Concept, System, and Method of Holographic Synthetic Aperture Radar
DING Chibiao,
QIU Xiaolan,
WU Yirong
Affiliations
DING Chibiao
①(National Key Lab of Microwave Imaging Technology, Beijing 100190, China)②(Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China)③(Institute of Electronics, Chinese Academy of Sciences, Suzhou Research Center, Suzhou 215123, China)④(University of Chinese Academy of Sciences, Beijing 100049, China)
QIU Xiaolan
①(National Key Lab of Microwave Imaging Technology, Beijing 100190, China)②(Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China)③(Institute of Electronics, Chinese Academy of Sciences, Suzhou Research Center, Suzhou 215123, China)④(University of Chinese Academy of Sciences, Beijing 100049, China)
WU Yirong
①(National Key Lab of Microwave Imaging Technology, Beijing 100190, China)②(Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China)③(Institute of Electronics, Chinese Academy of Sciences, Suzhou Research Center, Suzhou 215123, China)④(University of Chinese Academy of Sciences, Beijing 100049, China)
Over time, Synthetic Aperture Radar (SAR) imaging techniques have been developed from twodimensional SAR, two-and-a-half-dimensional SAR (InSAR), and three-dimensional SAR to multi-dimensional SAR. This has led to great technological achievements. This paper briefly summarizes the development of SAR and its imaging technology, presents the concept of holographic SAR and clearly defines it for the first time, and highlights the differences and connection between the holographic SAR definition and existing concepts such as holographic radar, circular tomographic SAR, and multi-dimensional SAR. On this basis, under the framework of the existing multi-dimensional SAR techniques, the imaging system and signal model of holographic SAR are established, and preliminary imaging ideas are proposed, which provides a preliminary theoretical and technical framework for the development of holographic SAR technology.
