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アイテム
アナログフィルタの合成特性 Ⅰ.バタワースフィルタ
http://hdl.handle.net/10105/393
http://hdl.handle.net/10105/39389f7911d-3ad8-44d3-9a50-a1e7c92df971
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
NUE49_2_65-73.pdf (375.7 kB)
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| アイテムタイプ | 紀要論文 / Departmental Bulletin Paper(1) | |||||||
|---|---|---|---|---|---|---|---|---|
| 公開日 | 2010-06-10 | |||||||
| タイトル | ||||||||
| タイトル | アナログフィルタの合成特性 Ⅰ.バタワースフィルタ | |||||||
| 言語 | ||||||||
| 言語 | jpn | |||||||
| キーワード | ||||||||
| 主題 | analog filter, combined characteristics, Butterworth filter, アナログフィルタ, 合成特性, バタワース | |||||||
| 資源タイプ | ||||||||
| 資源タイプ | departmental bulletin paper | |||||||
| 著者 |
六田, 嘉明
× 六田, 嘉明
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| 著者(ヨミ) | ||||||||
| 姓名 | ムダ, ヨシアキ | |||||||
| 著者別名 | ||||||||
| 姓名 | MUDA, Yoshiaki | |||||||
| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | The "combined" characteristics of the analog filter are investigated，where the combined characteristics means the feature of the filters that represents how accurately the original signal divided by the low pass filter (LPF）and high pass filter（HPF）will be reproduced when summed after passing through these filters．The combined characteristics are important in the field of audio engineering，where the audio signal is often divided into two or more frequency bands，amplified separately，and finally we hear the vector sum of them in sound pressure. In this paper，the existence of the filter that has perfect combined－characteristics is discussed at first，and it has been proved that no stable filter with perfect combined characteristics exists of order N≧2，except for the first order delay element. Then the combined characteristics of the Butterworth filter are investigated analytically. It has been proved that the Butterworth filter of odd order has the perftct "amplitude"characteristics，namely，lGT（jw）l＝1，where GT is the sum of the transfer functions of LPF and HPF，but their group delay characteristics and impulse response functions are not good，in contrast to the Bessel filter，which will be reported elsewhere. | |||||||
| 書誌情報 |
奈良教育大学紀要. 自然科学 巻 49, 号 2, p. 65-73, 発行日 2000-11-10 |
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| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 05472407 | |||||||
| 書誌レコードID | ||||||||
| 収録物識別子タイプ | NCID | |||||||
| 収録物識別子 | AN00181070 | |||||||
| 著者版フラグ | ||||||||
| 出版タイプ | VoR | |||||||
| その他のタイトル | ||||||||
| その他のタイトル | Combined Characteristics of Analog Filters I.Butterworth Filter | |||||||
| 出版者 | ||||||||
| 出版者 | 奈良教育大学 | |||||||
