Impact of CCD camera SNR on polarimetric accuracy

被引：16
|
作者：
Chen, Zhenyue [1 ,2 ]
Wang, Xia [1 ]
Pacheco, Shaun [2 ]
Liang, Rongguang [2 ]
机构：
[1] Beijing Inst Technol, Sch Optoelect, Key Lab Photoelect Imaging Technol & Syst, Beijing 100081, Peoples R China
[2] Univ Arizona, Coll Opt Sci, Tucson, AZ 85721 USA
来源：
APPLIED OPTICS | 2014年 / 53卷 / 32期
关键词：
NOISE RATIO; POLARIZATION; SIMULATION; DESIGN;
D O I：
10.1364/AO.53.007649
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A comprehensive charge-coupled device (CCD) camera noise model is employed to study the impact of CCD camera signal-to-noise ratio (SNR) on polarimetric accuracy. The study shows that the standard deviations of the measured degree of linear polarization (DoLP) and angle of linear polarization (AoLP) are mainly dependent on the camera SNR. With increase in the camera SNR, both the measurement errors and the standard deviations caused by the CCD camera noise decrease. When the DoLP of the incident light is smaller than 0.1, the camera SNR should be at least 75 to achieve a measurement error of less than 0.01. When the input DoLP is larger than 0.5, a SNR of 15 is sufficient to achieve the same measurement accuracy. An experiment is carried out to verify the simulation results. (C) 2014 Optical Society of America
引用
收藏
页码：7649 / 7656
页数：8
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