作者
Zhenyu Li, Mengdao Xing, Yi Liang, Yuexin Gao, Jianlai Chen, Yuanyuan Huai, Letian Zeng, Guang-Cai Sun, Zheng Bao
发表日期
2016/3/17
期刊
IEEE Transactions on Geoscience and Remote Sensing
卷号
54
期号
7
页码范围
4023-4038
出版商
IEEE
简介
The imagery of highly squinted synthetic aperture radar mounted on maneuvering platforms with nonlinear trajectory is a challenging task due to the existence of acceleration and the cross-range-dependent range migration and Doppler parameters. In order to accommodate these issues, a frequency-domain imaging algorithm based on tandem two-step nonlinear chirp scaling (TNCS) with small aperture is proposed. For the cross-range-dependent range cell migration (RCM) caused by the linear range walk correction and acceleration, the first-step NCS is introduced to suppress this dependence and realize the unified RCM correction. Based on the differences between full-aperture and small-aperture data in the cross-range processing, the second-step NCS is introduced in frequency domain to equalize the cross-range-dependent Doppler parameters, for cross-range processing is more sensitive to the cross …
引用总数
201620172018201920202021202220234817221019105
学术搜索中的文章
Z Li, M Xing, Y Liang, Y Gao, J Chen, Y Huai, L Zeng… - IEEE Transactions on Geoscience and Remote …, 2016