NDLI: Applications of Optimal Stochastic Control Designs to a Ground-Based Tracking System

Content Provider	IEEE Xplore Digital Library
Author	Wu, Y. A.
Copyright Year	1989
Description	Author affiliation: Hughes Aircraft Company, Electro-Optical & Data Systems Group, P. O. Box 902, El Segundo, CA 90245 (Wu, Y. A.)
Abstract	The use of linear-quadratic stochastic control designs for a ground-based tracking system is investigated. The design approach is motivated by the facts that: (i) the power spectral density of the atmospheric turbulence-induced tilt is known, and can be accurately modeled; and (ii) the angular anisoplanatism effect can be expressed in terms of its temporal correlation. The former generates a stochastic dynamic model that best describes the atmospheric turbulence-induced tilt, and the latter introduces a future state or a delay state depending upon the problem formulation. It is demonstrated that how a design philosophy, taking into account the above available information in its control design, can lead to a closed-loop system with a better tracking performance. For a simple case study, the analysis shows that with the proposed control design, the system could track a much weaker target (has at least 2.5 times less brightness) as compared to the system using the classical control design.
Starting Page	1585
Ending Page	1589
File Size	395847
Page Count	5
File Format	PDF
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1989-06-21
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Stochastic systems Control design Control systems Delay effects Target tracking Atmospheric modeling Power system modeling Stochastic processes Process design Statistics
Content Type	Text
Resource Type	Article

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