Image quality degradation of high-resolution optical system caused by disturbance of satellite platform

Chun Lei Liang*, Wei Rui Zhao

*Corresponding author for this work

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

Abstract

During satellite moving on orbit, effect of disturbance of satellite platform motion on optical system cannot be neglected. The influence on image quality of high-resolution optical system caused by satellite platform motion was analyzed in this paper. First, as linear, sinusoidal and random motion are three kinds of fundamental motion mode of satellite platform, the effects of the disturbance of linear, sinusoidal and random motion on Modulation Transfer Function (MTF) of optical system were simulated respectively. Second, based on the simulation results, conclusion that the Modulation Transfer Function (MTF) was degraded in various degrees under different modes of motion disturbance was obtained. To improve the axis stability of optical system for a high-resolution image, a coupler was researched and installed between the satellite platform and the optical imaging system to attenuate the disturbance from the satellite platform, and adaptive optics correction was adopted to correct the residual disturbance effect in real-time. By combining the coupler and adaptive optics correction, the high-resolution imaging was guaranteed effectively.

Original languageEnglish
Title of host publicationInternational Symposium on Photoelectronic Detection and Imaging 2011
Subtitle of host publicationSpace Exploration Technologies and Applications
DOIs
Publication statusPublished - 2011
EventInternational Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications - Beijing, China
Duration: 24 May 201126 May 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8196
ISSN (Print)0277-786X

Conference

ConferenceInternational Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications
Country/TerritoryChina
CityBeijing
Period24/05/1126/05/11

Keywords

  • Adaptive optics
  • Coupler
  • High-resolution
  • Image quality
  • Motion disturbance
  • Space-based observing

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