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An accurate FIR approximation of ideal fractional delay filter with complex coefficients in Hilbert space

Rizvandi, N. B ; Sharif University of Technology | 2005

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  1. Type of Document: Article
  2. DOI: 10.1142/S0218126605002386
  3. Publisher: 2005
  4. Abstract:
  5. This paper presents a low-order and accurate method for the design of FIR fractional delay (FD) filters with complex coefficients. This method employs least square technique in Hilbert space to approximate the ideal FD transfer function with a FIR filter and to calculate its coefficients. The main advantages of the resulting filter are: very good response at all frequencies compared to other FD filter design methods and a good method to create very small delay. Design examples are presented to illustrate the effectiveness of this new design approach. © World Scientific Publishing Company
  6. Keywords:
  7. FIR filters ; Least squares approximations ; Product design ; Transfer functions ; Complex coefficients ; Fractional delay ; Hilbert space ; Least square method ; Very small delay ; Delay circuits
  8. Source: Journal of Circuits, Systems and Computers ; Volume 14, Issue 3 , 2005 , Pages 497-505 ; 02181266 (ISSN)
  9. URL: https://www.worldscientific.com/doi/10.1142/S0218126605002386