A NOVEL MOVING TARGET DETECTION METHOD FOR HYBRID QUAD-POL SAR

被引：0
|
作者：
Ren, Yuwei [1 ,2 ]
Zheng, Mingjie [1 ]
Li, Peng [3 ]
Yin, Zhongzheng [1 ,2 ]
机构：
[1] Chinese Acad Sci, Aerosp Informat Res Inst, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China
[3] Beijing Autord Tech Co Ltd, Beijing 100102, Peoples R China
来源：
IGARSS 2023 - 2023 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM | 2023年
关键词：
Ground moving target indication (GMTI); hybrid quadrature-polarimetric (Quad-Pol); azimuth ambiguity; synthetic aperture radar (SAR);
D O I：
10.1109/IGARSS52108.2023.10281445
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
The other dimension information of polarimetric synthetic aperture radar (SAR) provides the possibility for ground moving target indication (GMTI). The moving target detection method for traditional quadrature-polarimetric (QuadPol) has been proposed, and the effectiveness has also been verified. But this method is not suitable for the hybrid Quad-Pol SAR system. In this letter, we proposes a novel moving target detection method for hybrid SAR. First, transform the scattering matrix measured from hybrid Quad-Pol SAR to obtain the synthesized cross polarization (cross-pol) images, which has the azimuth ambiguity of odd-order copol channels. Then, according to the reciprocity theorem, clutter suppression can be implemented by combining the synthesized cross-pol images. What's more, because the energy of copol channels is stronger than that of the cross-pol channels, the proposed method has better effect than the traditional method. Simulations demonstrate the effectiveness of the proposed method.
引用
收藏
页码：5838 / 5841
页数：4
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