Design of equiripple 2-D linear-phase FIR digital filters using genetic algorithm

  • Authors:

  • Felicja Wysocka-Schillak

  • Affiliations:

  • University of Technology and Agriculture, Institute of Telecommunications, Bydgoszcz, Poland

  • Venue:
  • NMA'06 Proceedings of the 6th international conference on Numerical methods and applications
  • Year:
  • 2006

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Abstract

The paper presents a method for designing 2-D linear-phase FIR filters with an equiripple magnitude response. The filter design problem is transformed into an equivalent nonlinear optimization problem. In order to improve the speed of convergence, a two-step solution procedure of the considered problem is proposed. In the first step, a genetic algorithm is applied. The final point from the genetic algorithm is used as the starting point for a local optimization method. The proposed technique is applied to the design of 2-D FIR linear-phase filters with different symmetries. Design examples are included.