Detectability calibration of lunar-based optical telescope on ground

XU Liang; ZHAO Jian-ke; XUE Xun; LIU Feng; HU Dan-dan

doi:10.3788/OPE.20122005.0972

您当前的位置：

首页 >

文章列表页 >

Detectability calibration of lunar-based optical telescope on ground

Article | 更新时间：2020-08-12

- Detectability calibration of lunar-based optical telescope on ground
- Optics and Precision Engineering Vol. 20, Issue 5, Pages: 972-978(2012)
- 作者机构：
  
  中国科学院西安光学精密机械研究所,陕西西安 710119
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20122005.0972
  CLC： TN23;TH743
- Received：12 February 2012，
  
  Revised：02 March 2012，
  
  Published Online：10 May 2012，
  
  Published：10 May 2012
- 稿件说明：
移动端阅览
徐亮, 赵建科, 薛勋, 刘峰, 胡丹丹. 月基望远镜探测能力的地面标定[J]. 光学精密工程, 2012,20(5): 972-978

XU Liang, ZHAO Jian-ke, XUE Xun, LIU Feng, HU Dan-dan. Detectability calibration of lunar-based optical telescope on ground[J]. Editorial Office of Optics and Precision Engineering, 2012,20(5): 972-978
徐亮, 赵建科, 薛勋, 刘峰, 胡丹丹. 月基望远镜探测能力的地面标定[J]. 光学精密工程, 2012,20(5): 972-978 DOI： 10.3788/OPE.20122005.0972.

XU Liang, ZHAO Jian-ke, XUE Xun, LIU Feng, HU Dan-dan. Detectability calibration of lunar-based optical telescope on ground[J]. Editorial Office of Optics and Precision Engineering, 2012,20(5): 972-978 DOI： 10.3788/OPE.20122005.0972.

摘要

采用模拟试验在地面测试了月基望远镜(LOT)的星等探测信噪比及弥散斑能量集中度

用以验证望远镜的探测能力。与传统的通过分析CCD各项参数对噪声的影响来获得信噪比的方法不同

本文提出的方法客观、直接地通过图像信息来计算星点目标信噪比

其目标信噪比测试不确定度可优于8%。在测试弥散斑能量集中度时

通过质心算法求其弥散斑能量中心

进而提出了一种星点弥散斑高斯拟合方法来拟合弥散斑能量分布曲线。这种高斯拟合方法可使弥散斑能量集中度的测试精度提高10%。最后

通过试验测试了LOT相机星等探测信噪比及弥散斑能量集中度

验证了LOT相机+15 Mv的探测能力。

Abstract

The Signal-to-noise Ratio (SNR) of star-level detection and the energy concentration of a dispersed spot for an lunar-based Optical Telescope(LOT) are tested by using a simulation experiment on ground to verify its detection capability. Unlike the conventional methods that use the effect of CCD hardware parameters on the noise to test the SNR

the new test method directly uses the observation information to compute the SNRs of star targets and the tested uncertainty of object SNRs can be better than 8%. In the test of energy concentration

the centroid algorithm is used to computer the center of the dispersed spot and a Gaussian fitting method is proposed to fit the curve of the energy distribution. The Gaussian fitting method can significantly improve the detection precision of the energy concentration for the dispersed spot

and the testing precision has been improved by 10%. Finally

the detection capability of +15Mv of the LOT is verified by an experiment on the SNR of star level detection and the energy concentration of dispersed spot for the LOT.

关键词

Keywords

references

张晨,陈朝阳,沈绪榜. APS星跟踪器探测灵敏度研究 [J].光电工程,2004,31(10):17-20. ZHANG CH,CHEN ZH Y,SHEN X B. Study on detection sensitivity of APS star tracker [J]. Opt. Precision Eng.,2004,31 (10):17-20. (in Chinese)[2] 刘金国,李杰,郝志航. APS星敏感器探测灵敏度研究 [J].光学精密工程,2006,14(4):553-557. LIU J G,LI J,HAO ZH H. Study on detection sensitivity of APS star tracker [J].Opt. Precision Eng.,2006,14 (4):553-557. (in Chinese)[3] 李杰. APS星敏感器关键技术的研究 .北京:中国科学院研究生院,2005. LI J. Study on the Key Technology of APS Star Tracker . Beijing: Graduate University of the Chinese Academy of Sciences,2005. (in Chinese)[4] WANG J, DENG J S, CUI J, et al.. Lunar exosphere influence on lunar-based near-ultraviolet astronomical observations[J]. Advances in Space Research,2011,48(12):1927-1934.[5] HANCOCK B R,STIRBL R C,CUNNINGHAM T J, et al.. CMOS active pixel sensor specific performance effects on star tracker/imager position accuracy [J]. SPIE,2002,4284: 44-47.[6] 袁家虎,张建荣,贺善金. 导航星敏感器探测灵敏度研究 [J].光电工程,1999,26(6):1-6. YUAN J H,ZHANG J R,HE SH J.A study on detection sensitivity of navigation star sensor[J].Opt. Precision Eng.,1999,26(6):1-6. (in Chinese)[7] 彭华峰,陈鲸,张彬. 天基光电望远镜极限星等探测能力研究 [J].光电工程,2007,34(8):1-5. PENG H F,CHEN J,ZHANG B. Limited magnitude detectivity of space-based opto-electronic telescope[J].Opt. Precision Eng.,2007,34(8):1-5. (in Chinese)[8] 潘海斌,宋广华,解利军,等. 天基可见光相机探测灵敏度研究 [J].光学学报,2010,30(10):2935-2940. PAN H B,SONG G H,XIE L J, et al.. Research on detection sensitivity of space-based visible sensor[J].Acta Optica Sinica,2010,30(10):2935-2940. (in Chinese)[9] 张科科,傅丹鹰,周峰,等. 空间目标可见光相机探测能力理论计算方法研究 [J].航天返回与遥感,2006,27(4):22-26. ZHANG K K,FU D Y,ZHOU F, et al.. The study on detect ability calculation method of space object visible camera[J]. Spacecraft Recovery & Remote Sensing,2006,27(4):22-26. (in Chinese)[10] PETER L, CHU. Optimal projection for multidimensional signal detection[J]. IEEE Transactions on Acoustics,Speech and Signal Processing,1988,36( 5): 775-778.[11] 王辰,王宏强,陈明华. 成像器噪声对星敏感器星等灵敏度的影响 [J].红外与激光工程,2008,37(5):858-862. WANG CH,WANG H Q,CH M H. Effect of image processor’s noise on magnitude sensitivity of star sensor[J]. Infrared and Laser Engineering,2008,37(5) : 858-862. (in Chinese)[12] 王智,李朝辉. 月基极紫外相机光机结构设计 [J].光学精密工程,2011,19(10):2427-2433. WANG ZH,LI CH H. Design of optical-mechanical structure for lunar-based extreme ultraviolet camera [J].Opt. Precision Eng.,2011,19(10):2427-2433. (in Chinese)[13] 陈波,尼启良,王君林. 长春光机所软X射线-极紫外波段光学研究 [J].光学精密工程,2007,15(12):1862-1868. CHEN B,NI Q L,WANG J L.Soft X-ray and extreme ultraviolet optics in CIOMP [J]. Opt. Precision Eng.,2007,15(12):1862-1868. (in Chinese)

Views

795

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Development of zero-mode waveguide device with micro-reflector for high signal-to-noise fluorescence detection

Design of inertial space TDI camera for long arc active star source scanning

Research on velocity measurement method of rocket engine tail flame particle based on quantum filter and tracking algorithm

Calibration of signal-to-noise ratio of sub focal plane polarization image sensors

GNSS-R significant wave height inversion method based on delay-Doppler maps

Related Author

GUO Zhen

ZHOU Lianqun

HUANG Runhu

LIU Xuanshuo

LI Chuanyu

JIAO Chunxiao

ZENG Shutong

YAN Andong

Related Institution

Suzhou Institute of Biomedical Engineering and Technology， Chinese Academy of Sciences

University of Science and Technology of China

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

University of Chinese Academy of Sciences

Key Laboratory of Space-based Dynamic & Rapid Optical Imaging Technology， Chinese Academy of Sciences

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