相干场成像探测器噪声定量化占比模型

程志远; 罗秀娟; 马彩文; 张羽; 刘辉; 朱香平

doi:doi:10.3788/gzxb20154404.0407002

光子学报, 2015, 44 (4): 0407002, 网络出版: 2015-04-28

相干场成像探测器噪声定量化占比模型

Detector Noise Quantitative Ratio Modelling in Coherent Field Imaging

论文大纲

程志远 ^1,2,*罗秀娟 ¹马彩文 ¹张羽 ^1,2刘辉 ¹朱香平 ¹

作者单位

¹ 中国科学院西安光学精密机械研究所,西安 710119

² 中国科学院大学,北京 100049

摘要

为解决激光相干场成像系统探测器噪声相对总噪声的定量化占比估计问题, 分析探测器噪声是否为主要噪声源, 提出一种探测器噪声占比权重定量化分析计算方法.基于光电子统计方法得到系统信噪比方程, 并引入信噪比中间参数估计方程, 建立了探测器噪声相对总噪声的占比权重定量化计算模型.结合理论分析与实验测量进行验证, 结果表明: 针对构建的相干场成像实验系统, 探测器噪声占比权重达52%, 进一步分析可知实验在大气相对宁静的夜晚进行, 系统受背景光噪声和湍流噪声影响小, 探测器噪声是主要噪声源.所提方法可有效估算探测器噪声占比权重, 具有便捷、高效的特点, 可用于实际相干场成像系统探测器噪声定量化评估测量分析.

Abstract

In order to settle the problem of quantitativly estimating ratio of detector noise and analyse whether detecoror noise is the main noise in laser coherent field imaging system,a novel method of quantitative analysis detector noise ratio was proposed.The Signalt-to-Noise (SNR) of the system was given by photoelectron statistics method,and estimating equation of SNR intermediate parameter was derived.A quantitative ratio model of detector noise to total noise was established by SNR equation and estimating equation of SNR intermediate parameter.The ratio model was tested and verified by theory analysis and experiment.The results show that in the specific experiment table,detector noise is about 52% of the total noise.Because the experiment was accomplished at night,turbulence noise and background noise had the least influence on the system,detector noise was the main noise source.The conclusion was acquired that the proposed metod can accurately and effectively estimate detector noise ratio to total noise and has the advantage of simplicity and effectiveness.It can be widely applied in quantitative analysing and measuring of detector noise in laser coherent imaging system.

参考文献

[1] CUELLAR E,STAPP J,COOPER J.Laboratory and field experimental demonstration of a Fourier telescopy imaging system ［C］.SPIE,2005,5896: 58960D.

[2] STAPP J,SPIVEY B,CHEN L,et al.Simulation of a Fourier telescopy imaging system for objects in low earth orbit［C］.SPIE,2006,6307: 630701.

[3] CUELLAR E,COOPER J,MATHIS J,et al.Laboratory demonstration of a multiple beam Fourier telescopy imaging system［C］.SPIE,2008,7094: 70940G.

[4] 张文喜,相里斌,孔新新,等.相干场成像技术分辨率研究［J］,物理学报,2013,62(16): 164203.

ZHANG Wen-xi,XIANG Li-bin,KONG Xin-xin,et al.Resolution of coherent field imaging technique［J］.Acta Physica Sinica,2013,62(16): 164203.

[5] 李扬,相里斌,张文喜.湍流大气中激光传输对傅立叶望远镜成像质量的影响［J］.强激光与粒子束.2013,25(2): 292-296.

LI Yang,XIANG Li-bin,ZHANG Wen-xi.Effects of laser propagation through atmospheric turbulence on imaging quality in Fourier telescopy［J］.High Power Laser and Particle Beams,2013,25(2): 292-296.

[6] ZHOU Zhi-sheng,XIANG Li-Bin,ZHANG Wen-xi,et al.Fourier telescopy extrapolation based on the sampling theorem［J］.Optik,2013,124: 5542– 5547.

[7] 叶溯,刘艺,吴健.傅里叶望远术中天线阵列配置对成像质量的影响［J］.强激光与粒子束,2011,23(3): 611-616.

YE Su,LIU Yi,WU Jian.Effects of antenna array conf igurations on imaging qual ity in Fourier telescopy［J］.High Power Laser and Particle Beams,2011,23(3): 611-616.

[8] 罗秀娟,张羽,孙鑫, 等.大气环境中傅里叶望远镜系统能量设计［J］.光学学报,2013,33(8) : 0801004.

LUO Xiu-juan,ZHANG Yu,SUN Xin,et al.Energy Design of fourier telescope system in the atmospheric environment［J］.Acta Optica Sinica,2013,33(8) : 0801004.

[9] 曾志红,罗秀娟,王宝峰,等.傅里叶望远镜大气湍流模拟实验［J］.光子学报,2014,43(6): 0601002.

ZENG Zhi-hong,LUO Xiu-juan,WANG Bao-feng,et al.Laboratory simulation of atmosphere turbulence for fourier telescopy［J］.Acta Photonica Sinica,2014,43(6): 0601002.

[10] 董磊,刘欣悦,陈宝刚,等.傅里叶望远镜外场实验与结果分析［J］,光子学报,2011,40(9): 1317-1321.

DONG Lei, LIU Xin-yue,CHEN Bao-gang,et al.Field experiment and result analysis of fourier telescopy［J］,Acta Photonica Sinica,2011,40(9): 1317-1321.

[11] 王小伟,黎全,王雁桂,等.傅里叶望远术中相位闭合分析及其仿真［J］.国防科技大学学报,2009,31(1): 38-42.

WANG Xiao-wei,LI Quan,WANG Yan-gui,et al.Analysis and simulation on phase closure of Fourier telescopy［J］.Journal of National University of Defense Technology,2009,31(1): 38-42.

[12] 陈卫,黎全,王雁桂,等.傅里叶望远镜成像系统的实验研究［J］.光学学报,2011,31(3): 03110011-03110015.

CHEN Wei,LI Quan,WANG Yan-gui,et al.Experimental research of Fourier telescopy imaging system［J］.Acta Optica Sinica,2011,31(3): 03110011-03110015.

[13] HOLMES R B,MA S,BHOWMIK A,et al.Analysis and simulation of a synthetic-aperture technique for imaging through a turbulent medium［J］.Journal of the Optical Society of America A,1996,13(2): 351-364.

[14] 刘红梅,杨春花,刘鑫,等.量子点红外探测器的噪声表征［J］.物理学报.2013,62(21): 218501.

LIU Hong-mei,YANG Chun-hua,LIU Xin,et al.Noise characterization of quantum dot infrared photodetectrs［J］.Acta Physica Sinica,2013,62(21): 218501.

[15] 张闻文,钱月红,陈钱,等.电子倍增CCD噪声因子模型及测试方法［J］.光子学报,2013,42(11): 1345-1349.

ZHANG Wen-wen,QIAN Yue-hong,CHEN Qian,et al.Noise factors model of electron multiplying CCD and test method［J］.Acta Photonica Sinica,2013,42(11): 1345-1349.

程志远, 罗秀娟, 马彩文, 张羽, 刘辉, 朱香平. 相干场成像探测器噪声定量化占比模型[J]. 光子学报, 2015, 44(4): 0407002. CHENG Zhi-yuan, LUO Xiu-juan, MA Cai-wen, ZHANG Yu, LIU Hui, ZHU Xiang-ping. Detector Noise Quantitative Ratio Modelling in Coherent Field Imaging[J]. ACTA PHOTONICA SINICA, 2015, 44(4): 0407002.

相干场成像探测器噪声定量化占比模型

关于本站 Cookie 的使用提示

全站搜索

相干场成像探测器噪声定量化占比模型

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索