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Video s3
    Details
    Presenter(s)
    Chamira Edussooriya Headshot
    Affiliation
    Affiliation
    University of Moratuwa
    Country
    Author(s)
    Affiliation
    Affiliation
    University of Jaffna
    Affiliation
    Affiliation
    University of Moratuwa
    Affiliation
    Affiliation
    University of Moratuwa
    Affiliation
    Affiliation
    University of Queensland
    Display Name
    Arjuna Madanayake
    Affiliation
    Affiliation
    Florida International University
    Abstract

    Two-dimensional (2-D) infinite-extent impulse response (IIR) filter design is a challenging problem due to the difficulty in verifying stability. Optimization methods proposed so far predominantly consider the design of 2-D IIR filters having quadrantally-symmetric frequency responses, where the transfer functions have separable denominators. In this paper, we propose a weighted least-squares (WLS) design method for 2-D IIR filters having arbitrary frequency response and stable in the practical bounded-input bounded-output (P-BIBO) sense. Our design considers transfer functions with nonseparable numerators and denominators having complex- and real-valued coefficients, respectively. We formulate the WLS design as an iterative second-order cone programming problem, which includes constraints to guarantee the P-BIBO stability. Design examples confirm that the proposed WLS method leads to P-BIBO stable 2-D IIR filters.

    Slides
    • Weighted Least-Squares Design of 2-D IIR Filters with Arbitrary Frequency Response Using Iterative Second-Order Cone Programming (application/pdf)