Design of a multifunction astronomical CCD camera

  • Dalei Yao
  • , Desheng Wen
  • , Jianru Xue
  • , Zhi Chen
  • , Yan Wen
  • , Baotan Jiang
  • , Jiangbo Xi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

To satisfy the requirement of the astronomical observation, a novel timing sequence of frame transfer CCD is proposed. The multiple functions such as the adjustments of work pattern, exposure time and frame frequency are achieved. There are four work patterns: normal, standby, zero exposure and test. The adjustment of exposure time can set multiple exposure time according to the astronomical observation. The fame frequency can be adjusted when dark target is imaged and the maximum exposure time cannot satisfy the requirement. On the design of the video processing, offset correction and adjustment of multiple gains are proposed. Offset correction is used for eliminating the fixed pattern noise of CCD. Three gains pattern can improve the signal to noise ratio of astronomical observation. Finally, the images in different situations are collected and the system readout noise is calculated. The calculation results show that the designs in this paper are practicable.

Original languageEnglish
Title of host publicationSeventh International Conference on Digital Image Processing, ICDIP 2015
EditorsCharles M. Falco, Xudong Jiang
PublisherSPIE
ISBN (Electronic)9781628418293
DOIs
StatePublished - 2015
Event7th International Conference on Digital Image Processing, ICDIP 2015 - Los Angeles, United States
Duration: 9 Apr 201510 Apr 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9631
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference7th International Conference on Digital Image Processing, ICDIP 2015
Country/TerritoryUnited States
CityLos Angeles
Period9/04/1510/04/15

Keywords

  • Astronomical CCD camera
  • Frame transfer CCD
  • Time driving design
  • Video processing

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