A Method of Building Parameter Extraction Based on CSAR Imaging

Abstract:
Since Circular Synthetic Aperture Radar (CSAR) moves in a circle around the observation area, it can observe the observation area in all directions, then the scattering information of each observation angle of the observation scene can be obtained. The scattering characteristics of the building in the CSAR image are used to find out the corresponding relationship between the scattering feature of the building and the geometric parameters of the building, the parameter information of the building can be extracted. This paper proposes a method to extract building parameter information by combining the scattering features of the building target on the CSAR full-aperture image and sub-aperture images. The advantage of CSAR imaging technology is fully utilized, and the scattering characteristics of buildings on multiple azimuth sub-aperture images are combined in this method. The extraction accuracy is effectively improved in this method. Finally, for the first time, the self-measured L-band measured data is introduced for comparison and verification, which confirms the effectiveness and accuracy of the method proposed in this paper.