| Presentation | 2018-08-20 Design method of variable FIR filters with specified attenuation in part of stopband Takakazu Kimura, Toma Miyata, Yoshinori Tarumoto, Takahiro Natori, Naoyuki Aikawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In the field of digital signal processing, the frequency characteristics may be instantaneously changed according to the processing purpose. A variable digital filter(VDF) is a filter whose frequency characteristics can be easily and instantaneously changed. In the conventional variable filter, if the cutoff frequency changes, the stopband attenuation changes. Therefore, it becomes impossible to maintain the sufficient attenuation in a part of stopband. In this paper, we propose a design method for variable FIR filters with specified attenuation in part of stopband. The optimization methodology known as semi-definite programming(SDP) is used to design filter. In this optimization process, we add to the constraint on the specified attenuation in part of stopband. Through some example, the proposed filter shows sufficient attenuation in part of stopband despite the change of frequency characteristics. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | variable filters / semidefinite programming / equiripple characteristics / specified attenuation |
| Paper # | SIP2018-57 |
| Date of Issue | 2018-08-13 (SIP) |
| Conference Information | |
| Committee | SIP |
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| Conference Date | 2018/8/20(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Takushoku Univ. Bunkyo Campus. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Shogo Muramatsu(Niigata Univ.) |
| Vice Chair | Naoyuki Aikawa(TUS) / Kazunori Hayashi(Osaka City Univ) |
| Secretary | Naoyuki Aikawa(Takushoku Univ.) / Kazunori Hayashi(Hiroshima Univ.) |
| Assistant | Katsumi Konishi(Hosei Univ.) / hyihsin(Takushoku Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Signal Processing |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design method of variable FIR filters with specified attenuation in part of stopband |
| Sub Title (in English) | |
| Keyword(1) | variable filters |
| Keyword(2) | semidefinite programming |
| Keyword(3) | equiripple characteristics |
| Keyword(4) | specified attenuation |
| 1st Author's Name | Takakazu Kimura |
| 1st Author's Affiliation | Tokyo University of Science(TUS) |
| 2nd Author's Name | Toma Miyata |
| 2nd Author's Affiliation | Salesian Polytechnic(Salesian Polytechnic) |
| 3rd Author's Name | Yoshinori Tarumoto |
| 3rd Author's Affiliation | ISHIDA CO.,LTD.(ISHIDA) |
| 4th Author's Name | Takahiro Natori |
| 4th Author's Affiliation | Tokyo University of Science(TUS) |
| 5th Author's Name | Naoyuki Aikawa |
| 5th Author's Affiliation | Tokyo University of Science(TUS) |
| Date | 2018-08-20 |
| Paper # | SIP2018-57 |
| Volume (vol) | vol.118 |
| Number (no) | SIP-182 |
| Page | pp.pp.1-5(SIP), |
| #Pages | 5 |
| Date of Issue | 2018-08-13 (SIP) |