• Title, Summary, Keyword: 안정한 Non-causal Deconvolution 필터

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Deconvolution Filtering Method for All-pass Systems (전역통과 시스템에 대한 Deconvolution 필터링 기법)

  • Kim Sung-Jin
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.10 no.6
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    • pp.1025-1031
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    • 2006
  • In this paper, a deconvolution filtering method for all-pass systems based on FIR approximation is proposed. The proposed method enables us to obtain a causal stable deconvolution filter by FIR approximating a non-causal stable deconvolution filter to a causal stable one. As we can see in this paper, the impulse response of the deconvolution filter for all-pass system is simply the mirror image of the impulse response for all-pass system itself. Due to this symmetric property between all-pass system itself and its deconvolution Inter, this method can be applied to all-pass systems without special limitation of the system's order. In order to verify the performance of the proposed method. computer simulation results for 1st-, 2nd- and 400th-order all-pass systems are included.