FAST RFI LOCALIZATION USING VIRTUAL ARRAY IN SYNTHETIC APERTURE INTERFEROMETRIC RADIOMETERS

被引：0
|
作者：
Hu, Hao [1 ]
Hu, Fei [1 ,2 ]
He, Feng [1 ]
Li, Jun [1 ]
Zheng, Tao [1 ]
Peng, Xiaohui [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Elect Informat & Commun, Wuhan 430074, Hubei, Peoples R China
[2] Natl Key Lab Sci & Technol Multispectral Informat, Wuhan 430074, Hubei, Peoples R China
来源：
2017 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2017年
关键词：
radio frequency interference (RFI); virtual arrays; direction of arrival (DOA); rotational invariance; synthetic aperture interferometric radiometer;
D O I：
暂无
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Radio frequency interference (RFI) has becoming a seriously limitation in the retrieval of geophysical parameters from the measurements of microwave radiometers. In this work, a novel RFI localization approach is presented here to improve the computationally complexity by using virtual arrays and direction of arrival (DOA) estimations techniques. The proposed RFI localization method utilizes the underlying rotational invariance among signal subspaces induced by the virtual array, which is expanded by the sparse array in synthetic aperture interferometric radiometer (SAIR). Estimating Signal Parameters via Rotational Invariance Techniques (ES-PRIT) manifests remarkable performance and computational advantages in the test result over the proceeding approach like MUSIC without searching over parameter space.
引用
收藏
页码：1277 / 1280
页数：4
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