An integrated method of measuring wave-front aberrations and optical axis jitters of space camera

Humei Wang, Shitao Wang, Xinqi Hu*, Qianqian Sun

*Corresponding author for this work

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

Abstract

The image quality of a high resolution space camera may be degraded by wavefront aberrations and optical axis jitters. It is desirable to use an in-orbit instrument to measure these errors and then correct them with on-line adaptive optical technologies or off-line image restoration algorithms. An integrated method of measuring wavefront aberrations and optical axis jitters of the space camera based on the ground scene Shack-Hartmann wavefront sensor is studied. When working in jitter-sensing mode, only parts of the sub-images are read to enhance the frame rate. Factors affect the precision are analyzed. Experiments are made which show that this method has a good performance by choosing proper parameters.

Original languageEnglish
Title of host publicationInternational Symposium on Optoelectronic Technology and Application 2014
Subtitle of host publicationOptical Remote Sensing Technology and Applications
EditorsAnatoli G. Borovoi, Dong Liu
PublisherSPIE
ISBN (Electronic)9781628413854
DOIs
Publication statusPublished - 2014
EventInternational Symposium on Optoelectronic Technology and Application 2014: Optical Remote Sensing Technology and Applications, IPTA 2014 - Beijing, China
Duration: 13 May 201415 May 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9299
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceInternational Symposium on Optoelectronic Technology and Application 2014: Optical Remote Sensing Technology and Applications, IPTA 2014
Country/TerritoryChina
CityBeijing
Period13/05/1415/05/14

Keywords

  • Remote sensing
  • Shack-Hartmann
  • jitter sensing
  • wavefront sensing

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