1. Beijing Key Laboratory of Embedded Real-time Information Processing Technology,School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China
2. Beijing Institute of Spacecraft System Engineering, Chinese Academy of Space Technology, Beijing 100081, China
Corresponding author (firstname.lastname@example.org
This work was supported by National Natural Science Foundation of China (Grant Nos. 61370017, 61625103, 61427802 ).
(Color online) Curved satellite track and spherical earth surface in GEO SAR.
(Color online) Parameter of SM mode. (a) Scene length for 1 h; (b) azimuth resolution.
(Color online) Straight line model.
(Color online) Curvature circle model for beam scan mode. (a) 3-D model; (b) the $X$-$Z$ plane; (c) the slant range plane.
(Color online) Beam velocity.
(Color online) Detailed beam scan modes with a negative BSC.
(Color online) Design results. (a) BSC and SC; (b) work mode; (c) scan angular speed; (d) work time and integration time.