Parabolic Drag-Free Flight, Actuation with Kicks, Spectral Analysis with Gaps

Details Parabolic Drag-Free Flight, Actuation with Kicks, Spectral Analysis with Gaps Parabolic Drag-Free Flight, Actuation with Kicks, Spectral Analysis with Gaps

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010ssrv..151..183g&link_type=abstract

Space Science Reviews, Volume 151, Issue 1-3, pp. 183-196

Physics

Lisa Pathfinder, Drift Mode, Drag Free, Parabolic Flight, Estimation, Spectrum, Gap-Filling

Scientific paper

The LISA Pathfinder Drift Mode is an experimental mode proposed for the LISA Pathfinder drag free space mission. The Drift Mode’s specificity is to switch off a possibly noisy actuator periodically in order to minimize the actuation noise. The experiment delivers a measurement that includes data segments virtually free of any actuation force noise. The corresponding acceleration data is then used to estimate the experiment disturbance spectrum, using a calibrating and gap-filling algorithm. This article focuses on two points to demonstrate the feasibility and interest of such an experiment: a first part is dedicated to experiment control and dynamics, whereas the second part explains how to solve the challenging problem posed by the data analysis.

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