W band Dicke-radiometer for imaging

被引：8
|
作者：
Li, L. C. [1 ]
Yang, J. Y. [1 ]
Xiong, J. T. [1 ]
Wu, J. J. [1 ]
Jiang, Z. M. [1 ]
Zheng, X. [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Elect Engn, Chengdu 610054, Peoples R China
来源：
INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES | 2008年 / 29卷 / 09期
基金：
中国国家自然科学基金;
关键词：
PMMWI; Dicke-Radiometer; sensitivity; super-resolution;
D O I：
10.1007/s10762-008-9379-0
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a novel model is presented for Passive Millimeter Wave Imaging (PMMWI) in the near diffraction limited range. A compact W band super-heterodyne Dicke-radiometer is designed based on the research of the model. A super-resolution algorithm is adopted in order to solve the inherent problem of poor resolution imaging, which is caused by limited aperture dimensions and the consequent diffraction limit. Theoretical researches indicate that the super-resolution performance and spatial resolution are enhanced by this model and algorithm in the near diffraction limited range.
引用
收藏
页码：879 / 888
页数：10
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