Backscattering Feature Analysis and Recognition of Civilian Aircraft in TerraSAR-X Images

被引：48
作者：
Chen, Jiehong [1 ,2 ]
Zhang, Bo [1 ]
Wang, Chao [1 ]
机构：
[1] Chinese Acad Sci, Key Lab Digital Earth Sci, Inst Remote Sensing & Digital Earth, Beijing 100094, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS | 2015年 / 12卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Civilian aircraft (CA); recognition; salient point; synthetic aperture radar (SAR); SAR;
D O I：
10.1109/LGRS.2014.2362845
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
This letter first analyzes the scattering features of civilian aircraft (CA) using high-resolution TerraSAR-X images of the Hong Kong International Airport based on the electromagnetic scattering theory. The main stable scattering features are found to be salient points. Then, a salient point vector (SPV) is proposed to describe the salient points. By adding two relaxation variables to the matching process, the SPV becomes both translationally and rotationally invariant over a certain orientation range. In addition, a recognition scheme is designed to validate the scattering analysis and the SPV descriptor. Finally, 43 test chips are collected from another TerraSAR-X image acquired in November 2013 in the same location with similar imaging parameters. The test chips are applied to validate the analysis, the SPV descriptor, and the recognition scheme. The results of the experiment indicate that the recognition rate of the Boeing 747 CA reaches 80% and that the scattering features of the aircraft are rotationally invariant to within at least 5 degrees. This research verifies the potential application of CA monitoring using high-resolution synthetic aperture radar images.
引用
收藏
页码：796 / 800
页数：5
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