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Chin. Phys. B, 2014, Vol. 23(2): 028401    DOI: 10.1088/1674-1056/23/2/028401
INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY Prev   Next  

Study of a millimeter-wave squint indirect holographic algorithm suitable for imaging with large field-of-view

Gao Xianga b, Li Chaoa b, Fang Guang-Youa b
a Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;
b Key Laboratory of Electromagnetic Radiation and Sensing Technology, Chinese Academy of Sciences, Beijing 100190, China
Abstract  In this paper a millimeter-wave (MMW) squint indirect holographic method is presented, which is suitable for imaging with a large field-of-view. The proposed system employs the squint operation mode to remove the background and twin-image interferences, which achieves a similar effect to off-axis holography but leaves out the large-aperture quasi-optical component. The translational scanning manner enables a large field of view and ensures the image uniformity, which is difficult to realize in off-axis holography. In addition, a corresponding imaging algorithm for the presented scheme is developed to reconstruct the image from the recorded hologram. Some imaging results on typical objects, obtained with electromagnetic simulation, demonstrate good performance of the imaging scheme and validate the effectiveness of the image reconstruction algorithm.
Keywords:  millimeter-wave (MMW) indirect holographic scheme      squint operation mode      translational scanning manner      large field-of-view      image uniformity  
Received:  04 February 2013      Revised:  19 March 2013      Published:  12 December 2013
PACS:  84.40.-x (Radiowave and microwave (including millimeter wave) technology)  
  84.40.Xb (Telemetry: remote control, remote sensing; radar)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11174280, 60990323, and 60990320) and the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No. YYYJ-1123).
Corresponding Authors:  Gao Xiang, Li Chao     E-mail:  xianggao1985@126.com;cli@mail.ie.ac.cn
About author:  84.40.-x; 84.40.Xb

Cite this article: 

Gao Xiang, Li Chao, Fang Guang-You Study of a millimeter-wave squint indirect holographic algorithm suitable for imaging with large field-of-view 2014 Chin. Phys. B 23 028401

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