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59,80 €ISBN 978-3-8440-9281-3Softcover214 pages78 figures408 g24 x 17 cmEnglishThesis
November 2023
Niklas Houba
Tilt-to-Length Noise Estimation and Reduction Algorithms for Spaceborne Gravitational-Wave Observatories
The technological challenges for gravitational-wave detection from space are tremendous and unprecedented standards are imposed for optical instrument performance, platform integrity, and science data processing algorithms. Recently, the Laser Interferometer Space Antenna (LISA) Pathfinder mission successfully demonstrated key technologies for spaceborne laser interferometer constellations. Since then, theoretical and experimental system and instrument studies are continuously proceeding for LISA and other interferometer designs. The LISA mission is the concept of a three-satellite constellation realizing a spaceborne long-arm interferometer, expected to launch in the later 2030s. LISA aims to observe gravitational waves emitted by various stellar, galactic, and possibly cosmic sources. For this purpose, distance changes between free-falling test masses shall be measured with picometer precision. Due to the precision requirement, LISA belongs to the most ambitious missions ever flown. The dissertation deals with the modeling, estimation, and calibration of tilt-to-length (TTL) coupling noise required to achieve the foreseen detection sensitivity of gravitational-wave observatories in space.
Keywords: laser interferometer space antenna mission; tilt-to-length coupling noise calibration; noise optimization; time-delay interferometry; detector sensitivity
Fortschrittsberichte des Instituts für Flugmechanik und Flugregelung
Edited by Univ.-Prof. Dr.-Ing. Walter Fichter, Stuttgart
Volume 15
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