Details
| Original language | English |
|---|---|
| Article number | 082005 |
| Number of pages | 14 |
| Journal | Physical Review D |
| Volume | 110 |
| Issue number | 8 |
| Publication status | Published - 10 Oct 2024 |
Abstract
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, onboard signal propagation and processing delays have a non-negligible 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. 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.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Nuclear and High Energy Physics
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In: Physical Review D, Vol. 110, No. 8, 082005, 10.10.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Time-delay interferometry with onboard optical delays
AU - Reinhardt, Jan Niklas
AU - Euringer, Philipp
AU - Hartwig, Olaf
AU - Hechenblaikner, Gerald
AU - Heinzel, Gerhard
AU - Yamamoto, Kohei
N1 - Publisher Copyright: © 2024 authors. Published by the American Physical Society.
PY - 2024/10/10
Y1 - 2024/10/10
N2 - 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, onboard signal propagation and processing delays have a non-negligible 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. 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.
AB - 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, onboard signal propagation and processing delays have a non-negligible 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. 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.
UR - http://www.scopus.com/inward/record.url?scp=85206668985&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2405.20196
DO - 10.48550/arXiv.2405.20196
M3 - Article
AN - SCOPUS:85206668985
VL - 110
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 8
M1 - 082005
ER -