Optimal set of TDI CCD integration stages and gains of space remote sensing cameras

XUE Xu-cheng; SHI Jun-xia; L Heng-yi; MA Tian-bo; GUO Yong-fei

doi:10.3788/OPE.20111904.0857

您当前的位置：

首页 >

文章列表页 >

Optimal set of TDI CCD integration stages and gains of space remote sensing cameras

Article | 更新时间：2020-08-12

- Optimal set of TDI CCD integration stages and gains of space remote sensing cameras
- Optics and Precision Engineering Vol. 19, Issue 4, Pages: 857-863(2011)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
  2. 中国科学院研究生院北京,100039
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20111904.0857
  CLC： V475.3;TN386.5
- Received：26 November 2010，
  
  Revised：15 February 2011，
  
  Published Online：26 April 2011，
  
  Published：26 April 2011
- 稿件说明：
移动端阅览
薛旭成, 石俊霞, 吕恒毅, 马天波, 郭永飞. 空间遥感相机TDI CCD积分级数和增益的优化设置[J]. 光学精密工程, 2011,19(4): 857-863

XUE Xu-cheng, SHI Jun-xia, L Heng-yi, MA Tian-bo, GUO Yong-fei. Optimal set of TDI CCD integration stages and gains of space remote sensing cameras[J]. Editorial Office of Optics and Precision Engineering, 2011,19(4): 857-863
薛旭成, 石俊霞, 吕恒毅, 马天波, 郭永飞. 空间遥感相机TDI CCD积分级数和增益的优化设置[J]. 光学精密工程, 2011,19(4): 857-863 DOI： 10.3788/OPE.20111904.0857.

XUE Xu-cheng, SHI Jun-xia, L Heng-yi, MA Tian-bo, GUO Yong-fei. Optimal set of TDI CCD integration stages and gains of space remote sensing cameras[J]. Editorial Office of Optics and Precision Engineering, 2011,19(4): 857-863 DOI： 10.3788/OPE.20111904.0857.

摘要

为了提高空间TDI CCD遥感相机的成像质量

研究了相机TDI CCD积分级数和增益的优化设置方法。分别讨论了信噪比(SNR)和调制传递函数(MTF)与积分级数的关系

指出增加积分级数能解决光能量不足问题并有效提高SNR

但同时会引起系统MTF下降;增加增益也可解决光能量不足问题

但不能改变系统的SNR和MTF

因此优化积分级数和增益可改善图像质量。采用SNRMTF作为图像质量评价指标

对积分级数和增益设置进行了优化。数值计算结果表明:在给定的相机参数下

当卫星俯仰角速度为0.005 ()/s

曝光量为饱和值的1/66时

积分级数选为44级

增益设置为1.5可获得较好的图像质量。

Abstract

In order to improve the image quality of the space TDI CCD remote sensing cameras

the method to set optimally of TDI CCD integration stages and gains was proposed. The dependence of the Signal to Noise Ratio(SNR) and Modulation Transfer Function(MTF) on the integnation stages was discussed.Then

it points out that increasing integration stages can resolve the lack of exposure light energy and improve SNR

but it causes the image MTF reduced. However

increasing gains can also resolve the problem of lack of exposure light

and it makes the SNR and the imaging MTF unchanged. These results means that the set of the SNR and imaging MTF can improve the image quality. By using the SNRMTF as the optimal goal

this paper optimizes the integration stage and the gain. Numerical calculation result shows that when the pitch speed of satellite is 0.005/s and the exposure is 1/66 of saturation

the high quality image can be obtained in the integration stage to be 44 and the gain to be 1.5.

关键词

Keywords

references

HOLST G C. CCD Arrays, Cameras, and Displays[M]. 2nd ed.USA: JCD Publishing, 1998.[2] HOLST G C. Electro-Optical Imaging System Performance [M]. USA: JCD Publishing, 2008.[3] WANG D J , ZHANG T, KUANG H P. Clocking smear analysis and reduction for multi phase TDI CCD in remote sensing system[J]. Optics Express, 2011,19(5):4868-4880.[4] 马天波,郭永飞,李云飞. 科学级TDICCD相机的行频精度[J]. 光学精密工程, 2010,18(9):2028-2035. MA T B, GUO Y F, LI Y F. Precision of row frequency of scientific grade TDICCD camera [J]. Opt. Precision Eng., 2010, 18(9):2028-2035. (in Chinese)[5] 邓湘金,郭强,饶炜. 月球探测器TDI-CCD相机成像质量影响因素分析[J]. 航天器工程, 2010,19(5):70-75. DENG X J, GUO Q, RAO W. Factors Affecting the TDI-CCD Camera Image Quality in the Lunar Orbiter[J]. Spacecraft Engineering, 2010,19(5):70-75.[6] 徐茜,苗丽峰,王跃明,等. 8192像元TDI-CCD相机信噪比的深入分析[J]. 红外技术, 2008,30(12):683-687. XU Q, Miao L F,WANG Y M, et al.. In-depth Analysis of TDI-CCD Image Senor[J]. Infrared Technology, 2008,30(12):683-687.[7] JANESICK J R. Scientific Charge-Coupled Devices[M]. USA: SPIE Publications, 2001.[8] 陈世平. 关于遥感图像品质的若干问题[J]. 航天返回与遥感, 2009,30(2):10-17. CHEN SH P. Some issues about the remote sensing image quality[J]. Spacecraft Recovery & Remote Sensing, 2009,30(2):10-17. (in Chinese)[9] 杨秀彬,贺小军,张刘,等. 偏流角误差对TDI CCD相机成像的影响与仿真[J]. 光电工程, 2008,35(11):45-50. YANG X B, HE X J, ZHANG L, et al.. Effect and simulation of the deviant angle error on TDI CCD cameras image [J]. Opto-Electronic Engineering, 2008,35(11):45-50. (in Chinese)[10] 闫得杰,徐抒岩,韩诚山. 飞行器姿态对空间相机像移补偿精度的影响[J]. 光学精密工程, 2008,16(11):2199-2203. YAN D J, XU SH Y, HAN CH SH. Effect of aerocraft attitude on image motion compensation of space camera[J]. Opt. Precision Eng., 2008,16(11):2199-2203. (in Chinese)[11] 曲宏松,张叶,金光. 基于数字域TDI算法改进面阵CMOS图像传感器功能[J]. 光学精密工程, 2010,18(8):1896-1903. QU H S, ZHANG Y, JIN G. Improvement of performance for CMOS area image sensors by TDI algorithm in digital domain[J]. Opt. Precision Eng., 2010,18(2):1896-1903. (in Chinese)[12] 龙夫年,张旺,刘剑峰. 卫星姿态精度对TDI CCD相机的影响[J]. 哈尔滨工业大学学报, 2002,34(3):382-384. LONG F N, ZHANG W, LIU J F. Effect of satellite attitude control accuracy on TDI CCD cameras [J]. Journal of Harbin Institute of Technology, 2002,34(3):382-384. (in Chinese)[13] WONG H S, YAO Y L, SCHLIG E S. TDI charge-coupled devices: design and applications[J]. IBM Journal of Research and Development, 1992,36(1):83-105.

Views

790

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Automatic segmentation of aggregate images with MET optimized by chaos SSA

Design of auto-exposure imaging circuit under complex illuminance of Mars in Tianwen-1 high-resolution camera

Imaging noise analyzing and suppressing for Tianwen-1 high-resolution camera

Multi-level threshold segmentation of high-resolution panchromatic remote sensing imagery

Optimization of single lenticular honeycomb boom for optical film deployable mechanism

Related Author

WANG Mengfei

WANG Weixing

LI Limin

Jingtao HUANG

Xiaodong WANG

Zhenya SUN

Dali ZHOU

Pengji ZHOU

Related Institution

School of Electrical and Electronic Engineering， Wenzhou University

College of Information， Chang'an University

Changchun Institute of Optics，Fine Mechanics and Physics，Chinese Academy of Sciences

University of Chinese Academy of Sciences

Institute for Remote Sensing Science and Application, School of Geomatics, Liaoning Technical University

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176855 Email：gxjmgc@ciomp.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰