Lennart Lindegren
Professor
High-accuracy positioning: astrometry
Author
Summary, in English
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.
Department/s
- Lund Observatory - Has been reorganised
Publishing year
2010
Language
English
Pages
279-291
Publication/Series
Observing Photons in Space
Volume
9
Document type
Book chapter
Publisher
International Space Science Institute
Topic
- Astronomy, Astrophysics and Cosmology
Status
Published
ISBN/ISSN/Other
- ISSN: 1608-280X
- ISBN: 978-92-9221-938-8
- ISSI SR
- ISSI Scientific Report