Performance Improvement and System Design of Geo-SAR Using the Yaw Steering
Performance Improvement and System Design of Geo-SAR Using the Yaw Steering
复制标题
使用偏航转向的 Geo-SAR 性能改进和系统设计
DOI:
10.1109/jsen.2017.2735808
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发表时间:
2017-10
影响因子:
4.3
通讯作者:
Yuexin Gao
中科院分区:
文献类型:
--
作者:
Jianlai Chen;Guang-Cai Sun;Yong Wang;Mengdao Xing;Yuhong Zhang;Yuexin Gao
The yaw steering may be ineffective to compensate for the large Doppler centroid in geosynchronous SAR (Geo-SAR) in many cases. Therefore, the available studies are concentrated on the 2-D beam-steering, rather than the yaw steering. However, the range and azimuth may be severely coupled without any beam-steering or with the 2-D beam-steering. Fortunately, we found that the yaw steering could overcome this serious problem, and can bring several benefits in terms of the performance improvement of the system. In this paper, we first illustrate the benefits of the yaw steering, and then provide two aspects of the system design with the incorporation of demonstrating the benefits of the yaw steering. The demonstrated three main benefits of the yaw steering are: 1) makes the 2-D side-lobes nearly orthogonal, and improves the imagery quality; 2) largely reduces the synthetic aperture time, and decreases the computation burden of imaging processing; and 3) substantially mitigates the azimuth-variation of raw data, and simplifies the imaging processing.
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DOI:
10.1109/jstars.2016.2570231
发表时间:
2016-06
期刊:
IEEE Jstars
影响因子:
--
作者:
Zegang Ding;Wei Yin;Tao Zeng;Teng Long
通讯作者:
Teng Long
影响因子:
1.1
作者:
M. Bao;M. Xing;Yongkang Li
通讯作者:
M. Bao;M. Xing;Yongkang Li
影响因子:
4.8
作者:
Fiedler, H;Boerner, E;Krieger, G
通讯作者:
Krieger, G
影响因子:
8.8
作者:
Hu, Cheng;Li, Yuanhao;Cui, Chang
通讯作者:
Cui, Chang
DOI:
10.1109/tgrs.2013.2296357
发表时间:
2014-10-01
影响因子:
8.2
作者:
Ruiz-Rodon, Josep;Broquetas, Antoni;Rocca, Fabio
通讯作者:
Rocca, Fabio