Study of Composite Mode Curvilinear SAR

A new mode of curvilinear SAR called "composite mode curvilinear SAR (CCLSAR)" is proposed in this paper. In CCLSAR, the SAR operates in strip mode in azimuth and range dimension but spotlight mode in the height dimension. CCLSAR can synthesize a very large aperture in the direction of height, which cause very high resolution in the height dimension. Compared with the conventional curvilinear SAR, CCLSAR can acquire the imaging of large terrain quickly and immediately. Firstly the CCLSAR scheme was proposed and then the primary three-dimensional imaging in the case of full aperture of CCLSAR was discussed in this paper