SAR 3D imaging technology has been highly valued by many countries. In China, the University of Electronic Science and Technology of China, National University of Defense Technology, Beijing University of Aeronautics and Astronautics, Xidian University and Institute of Electronics, Chinese Academy of Sciences have also carried out corresponding research and experimental work. Among them, the State Key Laboratory of Microwave Imaging Technology of the Institute of Electronics, Chinese Academy of Sciences successfully developed the world's first array interferometric three-dimensional SAR system in 2015, and obtained the first international airborne array SAR three-dimensional scene imaging results.

(a)Array Interferometric SAR Airborne Platform  (b)Array antenna (2 transmissions and 8 receivers) (c)In-cabin handling equipment

Figure 1 In 2015, the Institute of Electronics, Chinese Academy of Sciences successfully developed the world's first array interferometric SAR three-dimensional imaging system

 (a)Optical remote sensing image of a cell in the scene           (b)SAR image obtained from a channel of an array interferometric SAR system

 (c)Array Interferometric SAR 3D Point Cloud 

(d)Reconstruction results of three dimensional model of array interferometric SAR

Fig. 2 The first international airborne array SAR 3D scene imaging results were obtained in Shanxi in 2015

(a)Array interferometric SAR 3D point cloud of a region

   (b)Local point cloud display 1    (c)Local point cloud display II

Fig. 3 3D imaging results of airborne array SAR in a complex city in a region in 2019