Non-linear parameter estimation for the LTP experiment: analysis of an operational exercise
Abstract
The precursor ESA mission LISA-Pathfinder, to be flown in 2013, aims at demonstrating the feasibility of the free-fall, necessary for LISA, the upcoming space-born gravitational wave observatory. LISA Technology Package (LTP) is planned to carry out a number of experiments, whose main targets are to identify and measure the disturbances on each test-mass, in order to reach an unprecedented low-level residual force noise. To fulfill this plan, it is then necessary to correctly design, set-up and optimize the experiments to be performed on-flight and do a full system parameter estimation. Here we describe the progress on the non-linear analysis using the methods developed in the framework of the \textit{LTPDA Toolbox}, an object-oriented MATLAB Data Analysis environment: the effort is to identify the critical parameters and remove the degeneracy by properly combining the results of different experiments coming from a closed-loop system like LTP.
Cite
@article{arxiv.1108.0865,
title = {Non-linear parameter estimation for the LTP experiment: analysis of an operational exercise},
author = {G. Congedo and F. De Marchi and L. Ferraioli and M. Hueller and S. Vitale and M. Hewitson and M. Nofrarias and A. Monsky and M. Armano and A. Grynagier and M. Diaz-Aguilo and E. Plagnol and B. Rais},
journal= {arXiv preprint arXiv:1108.0865},
year = {2011}
}
Comments
6 pages, 2 figures, 1 table, Proceedings of the 8th International LISA Symposium