| Presentation | 2002/4/12 New Transformation-Based Design of Variable Recursive Digital Filters with Guaranteed Stability Tian-Bo Deng, Yuko Nakagawa, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | As compared with non-recursive (finite-impulse-response: FIR) filters, recursive (infinite-impulse-response: IIR) digital filters require lower orders for achieving the same magnitude response, but the stability must be guaranteed during signal processing process, Especially in variable IIR filtering, variable IIR filter changes its coefficients when a new frequency-domain characteristic is updated, which may lead to unstability of the applied variable filter. This paper proposes a hyperbolic tangent method for transforming the denominator coefficients of a variable transfer function into a set of new coefficients, and then the new coefficients are determined as the polynomials of the spectral parameters that are used for tuning the magnitude response. This transformation can always guarantee the stability of the resulting variable IIR filter. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | variable digital filter / stability / magnitude response / polynomial approximation |
| Paper # | MI2002-13 |
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| Conference Information | |
| Committee | MI |
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| Conference Date | 2002/4/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Medical Imaging (MI) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | New Transformation-Based Design of Variable Recursive Digital Filters with Guaranteed Stability |
| Sub Title (in English) | |
| Keyword(1) | variable digital filter |
| Keyword(2) | stability |
| Keyword(3) | magnitude response |
| Keyword(4) | polynomial approximation |
| 1st Author's Name | Tian-Bo Deng |
| 1st Author's Affiliation | Department of Information Science,Faculty of Science,Toho University() |
| 2nd Author's Name | Yuko Nakagawa |
| 2nd Author's Affiliation | Department of Information Science,Faculty of Science,Toho University |
| Date | 2002/4/12 |
| Paper # | MI2002-13 |
| Volume (vol) | vol.102 |
| Number (no) | 18 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |