Study on the effect of rolling shutter sCMOS camera on space debris observation

被引：2

作者：

Zhang X.-X. ^{[1
,3
]}

Zhao J.-Y. ^{[2
]}

Jia J.-L. ^{[2
]}

Wu Q.-L. ^{[2
]}

Lu Y. ^{[1
,4
]}

Gao R.-C. ^{[5
]}

机构：

[1] Purple Mountain Observation, Chinese Academy of Sciences, Nanjing

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

[3] Key Laboratory of Space Object and Debris Observation, Chinese Academy of Sciences, Nanjing

[4] University of Chinese Academy of Sciences, Beijing

[5] The Experimental High School Attached to Beijing Normal University, Beijing

来源：

Zhang, Xiao-Xiang (csss@pmo.ac.cn) | 2018年 / Chinese Academy of Sciences卷 / 26期

关键词：

Astronomical positioning; Rolling shutter; SCMOS; Space debris;

D O I：

10.3788/OPE.20182606.1441

中图分类号：

学科分类号：

摘要：

Compared to traditional scientific CCD cameras in which the exposure of each pixel starts and ends synchronously, rolling shutter sCMOS cameras have recently emerged and operate based on an asynchronous start and end time, but with the same exposure period. For space debris observation, it is necessary to evaluate the effect on the measurement accuracy due to the asynchronous exposure among the sCOMS pixels. Firstly, the working sequence and max delay of certain sCMOS cameras were tested, and a correction formula was obtained. Subsequently, several laser satellites were selected as observation targets to test the astronomic positioning accuracy of space debris under two typical observation modes. The differences before and after exposure with non-synchronization correction were then compared. The experimental results indicate that the working sequence of a rolling shutter sCMOS camera is consistent with a theoretical device, and the maximum delay in the border row is 10 ms. The results also indicate that the internal accord accuracy of the staller position is better than 2 arcsec, and better than 3 arcsec for the precision of object astronomic positioning. Rolling shutter sCMOS cameras can be used for space debris observation with high-precision position measurements. © 2018, Science Press. All right reserved.

引用

页码：1441 / 1449

页数：8

共 11 条

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