Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Valeri I. Karlov"'
Autor:
Donovan N. Chin, Robert J. Nagle, Howard E. Alper, Kim B. Blair, Oren Becker, David N. Haney, Valeri I. Karlov, Leo S. D. Caves, Hon M. Chun, Masakatsu Watanabe, Keto Soosaar, Barry L. Farmer, Carlos E. Padilla
Publikováno v:
Journal of Computational Chemistry. 21:159-184
A modeling approach that can significantly speed up the dynamics simulation of large molecular systems is presented herein. A multigranular modeling approach, whereby different parts of the molecule are modeled at different levels of detail, is enabl
Publikováno v:
Journal of Guidance, Control, and Dynamics. 17:495-504
The integration of system identification and robust control is considered. The identification algorithm is an extended Kalman filter, and the robust control algorithm is based on Petersen-Holl ot's bounds (modified for random correlated parameters).
Autor:
Keto Soosaar, Glenn V. Webb, Leslie E. Matson, Valeri I. Karlov, Carlos E. Padilla, Hon M. Chun
Publikováno v:
Journal of the Optical Society of America. A, Optics, image science, and vision. 18(10)
We present a new approach to processing of interferometric data, which dramatically improves operation on the smallest fraction of the fringe (approximately 1/1,000 of a wavelength and beyond). In particular, this approach, dubbed the variation-invar
Publikováno v:
Astronomical Interferometry.
This paper introduces a new method for tracking fringes in ground-based optical stellar interferometry at low light levels under conditions of variations in OPD due to atmospheric turbulence. Like the group delay tracking (GDT), the method involves p
Publikováno v:
Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207).
Advanced nonlinear fringe tracking algorithms are used to improve the state-of-the-art in ground-based optical stellar interferometric fringe tracking by allowing the tracking of stars one to two bolometric magnitudes dimmer than currently possible.
Autor:
Jun Li, Carlos E. Padilla, Robert D. Reasenberg, John N. Tsitsiklis, Valeri I. Karlov, Hon M. Chun
Publikováno v:
Spaceborne Interferometry II.
The purpose of the fringe tracking algorithms is to maintain lock on the target star after acquisition and to obtain the most accurate estimate possible of the scientific quantity (or quantities) of interest in the presence of dynamic disturbances to
Autor:
Valeri I. Karlov, Jun Li, John N. Tsitsiklis, Hon M. Chun, Robert D. Reasenberg, Carlos E. Padilla
Publikováno v:
Spaceborne Interferometry II.
This paper presents the results of an investigation of the problem of fringe acquisition (FA) as it applies to high-precision space-based optical interferometers. The POINTS (for Precision Optical INTerferometry in Space) instrument concept, being de
Publikováno v:
Guidance, Navigation and Control Conference.
An approach to dynamic system identification is presented taking into account the goal of enhancing robust control performance of flexible structures. Identification techniques are derived which take advantage of the physics of structural dynamics an