Results 11 to 20 of about 4,540 (191)
Time-delay interferometry without delays [PDF]
Physical Review D, 2021 The space-based gravitational-wave observatory LISA relies on a form of synthetic interferometry (time-delay interferometry, or TDI) where the otherwise overwhelming laser phase noise is canceled by linear combinations of appropriately delayed phase measurements.
Michele Vallisneri +3 more
core +10 more sources
Varied avatars of time-delay interferometry [PDF]
Physical Review D, 2022 قياس التداخل بالتأخير الزمني (TDI) هو تقنية معالجة البيانات التي تلغي تقلبات طور الليزر الكبيرة التي تؤثر على قياسات دوبلر أحادية الاتجاه التي يتم إجراؤها بواسطة مقاييس تداخل الموجات الثقالية الفضائية غير المتكافئة. من خلال أخذ مجموعات خطية محدودة من قياسات دوبلر المزاحة للوقت بشكل صحيح، تتم إزالة تقلبات طور الليزر في أي وقت t ويمكن دراسة إشارات موجة ...
Sanjeev Dhurandhar +2 more
openaire +5 more sources
Second-generation time-delay interferometry [PDF]
Physical Review D, 2023 Time-Delay Interferometry (TDI) is the data processing technique that cancels the large laser phase fluctuations affecting the heterodyne Doppler measurements made by unequal-arm space-based gravitational wave interferometers. The space of all TDI combinations was first derived under the simplifying assumption of a stationary array, for which the three
Massimo Tinto +2 more
openaire +3 more sources
Fully Data‐Driven Time‐Delay Interferometry with Time‐Varying Delays [PDF]
Annalen der Physik, 2023 AbstractRaw space‐based gravitational‐wave data like laser interferometer space antenna's (LISA) phase measurements are dominated by laser frequency noise. The standard technique to make this data usable for gravitational‐wave detection is time‐delay interferometry (TDI), which cancels laser noise terms by forming suitable combinations of delayed ...
Quentin Baghi +3 more
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Implementation of time-delay interferometry for LISA [PDF]
Physical Review D, 2003 We discuss the baseline optical configuration for the Laser Interferometer Space Antenna (LISA) mission, in which the lasers are not free-running, but rather one of them is used as the main frequency reference generator (the {\it master}) and the remaining five as {\it slaves}, these being phase-locked to the master (the {\it master-slave configuration}
Tinto, M +3 more
openaire +5 more sources
Postprocessed time-delay interferometry for LISA [PDF]
Physical Review D, 2004 High-precision interpolation of LISA phase measurements allows signal reconstruction and formulation of Time-Delay Interferometry (TDI) combinations to be conducted in post-processing. The reconstruction is based on phase measurements made at approximately 10 Hz, at regular intervals independent of the TDI delay times. Interpolation introduces an error
Shaddock, Daniel +3 more
openaire +6 more sources
Time-delay interferometry without clock synchronization [PDF]
Physical Review D, 2022 Time-delay interferometry (TDI) is a data processing technique for LISA designed to suppress the otherwise overwhelming laser noise by several orders of magnitude. It is widely believed that TDI can only be applied once all phase or frequency measurements from each spacecraft have been synchronized to a common time frame.
Olaf Hartwig +5 more
openaire +7 more sources
Frequency-domain interferometry for the determination of time delay between two extreme-ultraviolet wave packets generated by a tandem undulator [PDF]
Scientific Reports, 2023 Synchrotron radiation, emitted by relativistic electrons traveling in a magnetic field, has poor temporal coherence. However, recent research has proved that time-domain interferometry experiments, which were thought to be enabled by only lasers of ...
Y. Hikosaka +9 more
doaj +2 more sources
Time-delay interferometry and clock-noise calibration [PDF]
Physical Review D, 2018 The Laser Interferometer Space Antenna is a joint ESA-NASA space-mission to detect and study mHz cosmic gravitational waves. The trajectories followed by its three spacecraft result in unequal- and time-varying arms, requiring use of the Time-Delay Interferometry (TDI) post- processing technique to cancel the laser phase noises affecting the heterodyne
Tinto, M., Hartwig, O.
openaire +6 more sources
Second-order combinatorial algebraic time-delay interferometry [PDF]
Physical Review D, 2023 22 pages, 4 ...
Wei-Liang Qian +5 more
openaire +3 more sources