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An Improved Recursive and Non-recursive Comb Filter for DSP Applications

Author

Listed:
  • Teymourzadeh, Rozita
  • Othman, Masuri

Abstract

The recursive and non-recursive comb filters are commonly used as decimators for the sigma delta modulators. This paper presents the analysis and design of low power and high speed comb filters. The comparison is made between the recursive and the non-recursive comb filters with the focus on high speed and saving power consumption. Design procedures and examples are given by using Matlab and Verilog HDL for both recursive and non-recursive comb filter with emphasis on frequency response, transfer function and register width. The implementation results show that non-recursive comb filter has capability of speeding up the circuit and reducing power compared to recursive one when the decimation ratio and filter order are high. Using Modified Carry Look-ahead Adder for summation and also apply pipelined filter structure makes it more compatible for DSP application.

Suggested Citation

  • Teymourzadeh, Rozita & Othman, Masuri, 2006. "An Improved Recursive and Non-recursive Comb Filter for DSP Applications," MPRA Paper 40626, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:40626
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    File URL: https://mpra.ub.uni-muenchen.de/40626/1/MPRA_paper_40626.pdf
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    More about this item

    Keywords

    Decimation; CIC; comb; Filters; Converters; Sigma Delta A/D conversion; comb filters; decimation filters;
    All these keywords.

    JEL classification:

    • L16 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Industrial Organization and Macroeconomics; Macroeconomic Industrial Structure
    • L0 - Industrial Organization - - General
    • L6 - Industrial Organization - - Industry Studies: Manufacturing
    • F14 - International Economics - - Trade - - - Empirical Studies of Trade
    • O14 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Industrialization; Manufacturing and Service Industries; Choice of Technology

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