Circuits, Systems and Signal Processing

, Volume 13, Issue 5, pp 591–600 | Cite as

Complex coefficient fir digital filters

  • M. J. Mismar
  • I. H. Zabalawi


The complex FIR digital filter is a filter that has complex coefficients in itsZ-domain transfer function. The set of coefficients is determined, based on some criterion, to meet predefined requirements. On this basis, an algorithm is proposed for designing FIR digital filters with asymmetric amplitude response in conjunction with linear phase. Minimax approximation has been adopted for determining the set of coefficients, where the associated set of overdetermined linear equations is solved by using an efficient linear programming algorithm. Computer simulations show that, to meet prescribed specifications, the proposed design algorithm yields a complex FIR digital filter with the lowest order.


Finite Impulse Response Digital Filter Finite Impulse Response Filter Complex Coefficient Entire Frequency Range 
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Copyright information

© Birkhäuser 1994

Authors and Affiliations

  • M. J. Mismar
  • I. H. Zabalawi
    • 1
  1. 1.Electrical Engineering Department, Faculty of Engineering and TechnologyUniversity of JordanAmmanJordan

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