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1. 中国科学院 长春光学精密机械与物理研究所,吉林 长春 130031, E-mail:yylyang@126.com
2. 北方彩晶集团有限公司,吉林 长春,130033
收稿日期:2008-01-25,
修回日期:1900-01-02,
网络出版日期:2009-02-20,
纸质出版日期:2009-02-20
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杨玉兰;孙金霞;付国柱. 主动成像系统中大气后向散射的分析和处理[J]. 液晶与显示, 2009,24(1): 126-129
YANG Yu-lan;SUN Jin-xia;FU Guo-zhu. Analysis and Treatment in Atmosphere Back-Scattering of Active Imaging System[J]. 液晶与显示, 2009,24(1): 126-129
利用大气后向散射几何模型
推导出后向散射的累积效应的近似表达式。计算结果表明
50 m范围内的后向散射光占光学系统可接收到后向散射光通量的80%。针对近距离后向散射光的上述特点
提出了采用双通道光学接收系统处理后向散射光的方法。软件模拟结果证明
该方法具有较好的后向散射光抑制效果
系统结构设计简单、容易实现。
According to geometry model of the atmosphere back-scattering
an approximately expression of atmosphere back-scattering accumulative effect was deduced in this paper. The result showed that 80% of the backscattered flux of the receiver come from those particles inner 50 m away from the receiver. Then
a new method of dealing with the backscattered light was presented by using a double passage optical receiver. The simulation result proved its good effects in improving image quality. The construction of the double passage receiver was simple and it can be easily realized.
. Heba Yuksel, Walid Atia, Christopher C D. A geometrical optics approach for modeling atmospheric turbulence [J]. Proc. of SPIE,2005, 5891:589109(1-12).
. 王智,贾书洪,张晓辉,等. 激光主动成像图像的多帧后处理算法研究 [J]. 光学精密工程, 2007,15(4):615-619.
. 郝贤鹏,任建岳. TDICCD相机的低噪声视频处理技术 [J]. 光学精密工程, 2008,16(10):1869-1873.
. 韩昌元. 高分辨力空间相机的光学系统研究 [J]. 光学精密工程, 2008,16(11):2164-2172.
. 张葆,洪永丰,史光辉. 非均匀性校正在红外杂散辐射抑制中的应用 [J]. 光学精密工程, 2008,16(12):2421-2429.
. Bogaturov A N, Dainty J C, Golembeoyskii Yu V, et al. Double passage imaging of an arbitrary object through turbulence experimental result, Russian Academy of Sciences [J]. SPIE, 2471: 311-315.
. Spiveyand B, Smith A. Descripsion and simulation of an active imaging technique utilizing two speckle fields:root reconstructors [J]. J.Opt. Soc. Am. A ,2002,19:444-457
. 杨皓明,王灵杰,冯秀恒. 一种新型复合摄像物镜的设计 [J]. 光学精密工程 ,2007,15(4):486-491.
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