Simulation, acquisition and analysis of passive millimeter-wave images in remote sensing applications

被引：43
|
作者：
Fetterman, M. R. [1 ]
Grata, J. [1 ]
Jubic, G. [1 ]
Kiser, W. L., Jr. [1 ]
Visnansky, A. [1 ]
机构：
[1] Penn States Electroopt Ctr, Freeport, PA 16229 USA
来源：
OPTICS EXPRESS | 2008年 / 16卷 / 25期
关键词：
D O I：
10.1364/OE.16.020503
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on the development of a passive millimeter-wave (MMW) imager for remote sensing, and the comparison of the experimentally acquired images with the theoretical images from our MMW scene simulator. The imager has an aperture diameter of 0.6m, and the detector and the imaging optics are mechanically raster-scanned over the scene to form an image. The angular resolution was experimentally found to be 0.4 degrees, which is close to the theoretical diffraction limit of 0.37 degrees, and the imager NEDT was measured to be 0.9K. Qualitatively, simulated MMW imagery showed good agreement with an experimental MMW image. (C) 2008 Optical Society of America
引用
收藏
页码：20503 / 20515
页数：13
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