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  • optimal control  (3)
  • Springer  (3)
  • Blackwell Publishing Ltd
  • Oxford University Press
  • 2000-2004  (3)
Collection
Keywords
Publisher
  • Springer  (3)
  • Blackwell Publishing Ltd
  • Oxford University Press
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    An All-Aspect Near-Optimal Guidance Law (2000)
    Springer
    Dynamics and control 10 (2000), S. 165-177 
    Details
    ISSN: 1573-8450
    Keywords: missile guidance ; optimal control
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract In this paper, a new guidancelaw known as the all-aspect proportional navigation (AAPN) guidancelaw is formulated. AAPN is a modification of traditional proportionalnavigation, with an additional term added to improve performanceat large heading error angles. The missile guidance problem isfirst formulated as an optimal control problem and solved usinga combined genetic algorithm-shooting method. The problem isrepeatedly solved at various heading error angles. By employingChebychev polynomial fitting, we can then determine the parametersof the AAPN. Subsequently, AAPN is compared against the proportionalnavigation guidance law as well as the optimal solution. Theresults clearly show that AAPN outperforms PN at large headingerror angles. Also, its performance is only slightly inferiorto the optimal solution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008395924656
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Some Optimal Control Problems Governed by Elliptic Variational Inequalities with Control and State Constraint on the Boundary (2000)
    Springer
    Journal of optimization theory and applications 106 (2000), S. 627-655 
    Details
    ISSN: 1573-2878
    Keywords: variational inequalities ; optimal control ; state constraint ; maximum principle
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract This work deals with the necessary conditions of optimality for some optimal control problems governed by elliptic variational inequalities. Boundary control and state constrained problems are considered. The techniques used are based on those in Ref. 1 and a new penalty functional is defined in this paper.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1004613630675
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  • 3
    Electronic Resource
    Electronic Resource
    Bilinear Control and Application to Flexible a.c. Transmission Systems (2000)
    Springer
    Journal of optimization theory and applications 105 (2000), S. 621-637 
    Details
    ISSN: 1573-2878
    Keywords: bilinear systems ; optimal control ; controllability ; stabilization ; electric power
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract The purpose of this paper is an integrated overview of bilinear systems (BLS) research which has evolved over the past few decades, and a new result on control of flexible a.c. transmission systems (FACTS) is presented. BLS may be derived in many cases from principles of physics, chemistry, biology, socioeconomics, and engineering. In other cases, BLS are more accurate approximations to nonlinear systems than are traditional linear systems, as shown for example by the added bilinear terms (in state and control) for the Taylor series. While an appropriately designed linear control system may be optimum relative to some quadratic performance index without added constraints, bilinear or parametric control can be designed to improve more global performance and indeed to increase the region of attainable states. Such controllability and stabilization of BLS and of a series line-capacitor controlled FACTS is presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1004645224313
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