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Time-delay interferometry with onboard optical delays

Збережено в:
Опубліковано в::arXiv.org (Aug 27, 2024), p. n/a
Автор: Jan Niklas Reinhardt
Інші автори: Euringer, Philipp, Hartwig, Olaf, Hechenblaikner, Gerald, Heinzel, Gerhard, Yamamoto, Kohei
Опубліковано:
Cornell University Library, arXiv.org
Предмети:
Gravitational waves
Data processing
Interferometry
Onboard
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Короткий огляд:Time-delay interferometry (TDI) is a data processing technique for space-based gravitational-wave detectors to create laser-noise-free equal-optical-path-length interferometers virtually on the ground. It relies on the interspacecraft signal propagation delays, which are delivered by intersatellite ranging monitors. Also delays due to onboard signal propagation and processing have a nonnegligible impact on the TDI combinations. However, these onboard delays were only partially considered in previous TDI-related research; onboard optical path lengths have been neglected so far. In this paper, we study onboard optical path lengths in TDI. We derive analytical models for their coupling to the second-generation TDI Michelson combinations and verify these models numerically. Furthermore, we derive a compensation scheme for onboard optical path lengths in TDI and validate its performance via numerical simulations.
ISSN:2331-8422
DOI:10.1103/PhysRevD.110.082005
Джерело:Engineering Database