Shi, Jun; Zhang, Xiaoling; Xiong, Jintao (E.E. Dept. University of electronic science and technology of china (UESTC), Chengdu, China)
The stretching technique is widely used in ISAR system to reduce the sampling frequency, while a residue phase arises. In this paper, considering the residue phase, a new ISAR model is established, the relationship between the ISAR parameters and ISAR image is analyzed in detail, and the mapping between the target and ISAR image is presented.