Parametric Wiener Filter with Linear Constraints for Unknown Target Signals

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Author(s)

Abstract

In signal restoration problems, we expect to improve the restoration performance with a priori information about unknown target signals. In this paper, the parametric Wiener filter with linear constraints for unknown target signals is discussed. Since the parametric Wiener filter is usually defined as the minimizer of the criterion not for the unknown target signal but for the filter, it is difficult to impose constraints for the unknown target signal in the criterion. To overcome this difficulty, we introduce a criterion for the parametric Wiener filter defined for the unknown target signal whose minimizer is equivalent to the solution obtained by the original formulation. On the basis of the newly obtained criterion, we derive a closed-form solution for the parametric Wiener filter with linear constraints.

Journal

  • IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

    IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E97.A(1), 322-330, 2014

    The Institute of Electronics, Information and Communication Engineers

Codes

  • NII Article ID (NAID)
    130003385362
  • Text Lang
    ENG
  • ISSN
    0916-8508
  • NDL Article ID
    025114789
  • NDL Call No.
    Z53-M297
  • Data Source
    NDL  J-STAGE 
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