Postprocessed time-delay interferometry for LISA
Date
2004
Authors
Shaddock, Daniel
Ware, B
Spero, Robert
Vallisneri, M
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Publisher
American Physical Society
Abstract
High-precision interpolation of LISA phase measurements allows signal reconstruction and formulation of time-delay interferometry (TDI) combinations to be conducted in postprocessing. The reconstruction is based on phase measurements made at approximately 10 Hz (for a 1 Hz signal bandwidth) at regular intervals independent of the TDI delay times. Interpolation introduces an error less than 1 × 10-8 with continuous data segments as short as 2 s in duration. The 10 Hz sampling rate represents an increase from the 2 Hz sampling rate needed for the original implementation of TDI. The advantages of this technique include increased flexibility of the data analysis and significantly simplified hardware.
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Keywords
Keywords: accuracy; analytical error; antenna; article; data analysis; gravity; interferometry; laser; signal processing; space flight; telemetry; time
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Source
Physical Review D-Particles, Fields, Gravitation and Cosmology
Type
Journal article
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2037-12-31
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