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The Feasibility of the Disturbance Accommodating Controller for Precision Antenna PointingThe objective of this study is to investigate the feasibility of a pointing (position loop) controller for the NASA-JPL Deep Space Network (DSN) antennas using the Disturbance Accommodating Control (DAC) theory. A model that includes state dependent disturbances was developed, and an example demonstrating the noise estimator is presented as an initial phase in the controller design. The goal is to improve pointing accuracy by the removal of the systematic errors caused by the antenna misalignment as well as sensor noise and random wind and thermal disturbances. Preliminary simulation results show that the DAC technique is successful in both cancelling the imposed errors and maintaining an optimal control policy.
Document ID
19880018798
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Gresham, L. L. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lansing, F. L. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Guiar, C. N. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
September 5, 2013
Publication Date
May 15, 1988
Publication Information
Publication: The Telecommunications and Data Acquisition Report
Subject Category
Mechanical Engineering
Accession Number
88N28182
Funding Number(s)
PROJECT: RTOP 310-20-65-63
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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