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Postprocessed time-delay interferometry for LISA

Date

2004

Authors

Shaddock, Daniel
Ware, B
Spero, Robert
Vallisneri, M

Journal Title

Journal ISSN

Volume Title

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.

Description

Keywords

Keywords: accuracy; analytical error; antenna; article; data analysis; gravity; interferometry; laser; signal processing; space flight; telemetry; time

Citation

Source

Physical Review D-Particles, Fields, Gravitation and Cosmology

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1103/PhysRevD.70.081101

Restricted until

2037-12-31