High-accuracy positioning: astrometry

Research output: Chapter in Book/Report/Conference proceedingBook chapter

Abstract

The limiting accuracy for measuring the location of an optical image is set by diffraction and photon noise, i.e., by the dual wave-particle nature of light. A theoretical expression for the limiting accuracy is derived under idealized conditions and generalized to take into account more realistic circumstances, such as additive noise and finite pixel size. Its application is discussed in relation to different space-astrometry techniques including grid modulation, direct imaging, and interferometry.

Details

Authors
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Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Astronomy, Astrophysics and Cosmology
Original languageEnglish
Title of host publicationObserving Photons in Space
PublisherInternational Space Science Institute
Pages279-291
Volume9
ISBN (Print)978-92-9221-938-8
Publication statusPublished - 2010
Publication categoryResearch
Peer-reviewedNo

Publication series

Name
Volume9
ISSN (Print)1608-280X