Fig. 1. Imaging geometry of the near-field OS-BiSAR

Fig. 2. Imaging results of the target model of multiple points,（a）the target model of multiple scattering points,（b）imaging result of OS-BiSAR RMA with range compensation,（c）imaging result of the proposed algorithm.

Fig. 3. Experimental results of the corner reflector and the metal ball at different distances,（a）imaging scene,（b）imaging result of OS-BiSAR RMA with range compensation,（c）imaging result of the proposed algorithm.

Fig. 4. Azimuth profiles of the corner reflector and the far ball by using（a）OS-BiSAR RMA with range compensation and（b）the proposed algorithm