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

作　　者：高翔 李超 方广有 

机构地区：[1]Institute of Electronics,Chinese Academy of Sciences [2]Key Laboratory of Electromagnetic Radiation and Sensing Technology,Chinese Academy of Sciences

出　　处：《Chinese Physics B》2014年第2期546-551,共6页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos.11174280,60990323,and 60990320);the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No.YYYJ-1123)

摘　　要：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.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.

关 键 词：millimeter-wave （MMW） indirect holographic scheme squint operation mode translational scan- ning manner large field-of-view image uniformity 

分 类 号：O438.1[机械工程—光学工程]