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Steering of Frequency Standards by the Use of Linear Quadratic Gaussian Control TheoryLinear quadratic Gaussian control is a technique that uses Kalman filtering to estimate a state vector used for input into a control calculation. A control correction is calculated by minimizing a quadratic cost function that is dependent on both the state vector and the control amount. Different penalties, chosen by the designer, are assessed by the controller as the state vector and control amount vary from given optimal values. With this feature controllers can be designed to force the phase and frequency differences between two standards to zero either more or less aggressively depending on the application. Data will be used to show how using different parameters in the cost function analysis affects the steering and the stability of the frequency standards.
Document ID
19960042633
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Koppang, Paul
(Naval Observatory Washington, DC United States)
Leland, Robert
(Alabama Univ. Tuscaloosa, AL United States)
Date Acquired
August 17, 2013
Publication Date
May 1, 1996
Publication Information
Publication: 27th Annual Precise Time and Time Interval (PTTI) Applications and Planning Meeting
Subject Category
Cybernetics
Accession Number
96N31596
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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