机载环视合成孔径雷达的双条带成像处理方法

ompared with the other classical working modes of synthetic aperture radar (SAR), the circular- scanning SAR system has the ability to map both sides of the radar’s flight path. The dual stripmap imaging mode is developed on such a basis, which satisfies wide imaging area and high resolution requirements as well as the improved imaging efficiency. This paper firstly analyzes the working principles and the data processing scheme imbedded with the subimage formation, geometric distortion correction and image mosaicing steps. The rules of choosing the system parameters to fulfill the required image resolution and the seamless mosaicing performance are then presented. The point-target simulation results are given to show the validity of the proposed methodology.