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Why optical images are easier to understand than radar images?-From the electromagnetic scattering and signal point of view
Zhang, Yunhua; Jiang, Jingshan
Department微波遥感部
Source PublicationProgress in Electromagnetics Research Symposium
2014
Pages1411-1415
Language英语
ISSN1559-9450
ISBN9781934142288
AbstractAs the bandwidth of SAR/ISAR system continuously increases as well as the synthetic aperture techniques develop, the spatial resolution of radar image is higher and higher. However, the high resolution of radar image does not mean the resolving ability for targets is high. We may have the same experience that the optical image is much easy to understand than radar image even if it has less resolution. A simple and frank explanation is due to the wavelengths of optical waves are much shorter than that of microwaves at which radars usually work, e.g., in the order of 10-5-10-4. Are there any the deep reasons for this? We will illustrate the inherent reasons in this paper from the aspects of imaging geometry and principle, electromagnetic scattering, signal characteristics, and so on.
Conference NameProgress in Electromagnetics Research Symposium, PIERS 2014
Conference DateAugust 25, 2014 - August 28, 2014
Conference PlaceGuangzhou, China
Indexed ByEI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/4361
Collection微波遥感部
Recommended Citation
GB/T 7714
Zhang, Yunhua,Jiang, Jingshan. Why optical images are easier to understand than radar images?-From the electromagnetic scattering and signal point of view[C]:Electromagnetics Academy,2014:1411-1415.
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