• DocumentCode
    813772
  • Title

    Choice of coordinates and computational difficulty

  • Author

    Johnson, George W.

  • Author_Institution
    IBM Federal Systems Division, Burlington, MA, USA
  • Volume
    19
  • Issue
    1
  • fYear
    1974
  • fDate
    2/1/1974 12:00:00 AM
  • Firstpage
    77
  • Lastpage
    78
  • Abstract
    Computational difficulty can be significantly reduced when optimal control and estimation problems are formulated in well-chosen coordinate systems. It is shown that every LQG (linear-quadratic-Gaussian) problem can be formulated in coordinates such that principal parts of the solution are either well-posed or ill-posed for numerical solution.
  • Keywords
    Estimation; Optimal control; Computational modeling; Digital filters; Distortion measurement; Eigenvalues and eigenfunctions; Ellipsoids; Length measurement; Observability; Phased arrays; Radar tracking; Rotation measurement;
  • fLanguage
    English
  • Journal_Title
    Automatic Control, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9286
  • Type

    jour

  • DOI
    10.1109/TAC.1974.1100471
  • Filename
    1100471
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=813772