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        <identifier>oai:kitami-it.repo.nii.ac.jp:00008622</identifier>
        <datestamp>2026-03-04T00:08:28Z</datestamp>
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          <dc:title>阻止域と通過域の両方が同時に等リプル特性になるRCポリフェーズフィルタの素子値設計法と素子値広がりの検討</dc:title>
          <dc:title>Design and Element Value Spread Considertations for RC Polyphase Filters with Simultaneously Equal Ripple both in Stopband and Passband</dc:title>
          <dc:creator>田邊, 寛朗</dc:creator>
          <dc:creator>89914</dc:creator>
          <dc:creator>Tanimoto, Hiroshi</dc:creator>
          <dc:creator>220</dc:creator>
          <dc:creator>谷本, 洋</dc:creator>
          <dc:creator>20322886</dc:creator>
          <dc:subject>RCポリフェーズフィルタ</dc:subject>
          <dc:subject>等リプル設計</dc:subject>
          <dc:subject>素子値設計</dc:subject>
          <dc:subject>素子値広がり</dc:subject>
          <dc:subject>アナログ複素係数フィルタ</dc:subject>
          <dc:subject>RC polyphase filter</dc:subject>
          <dc:subject>equal ripple design</dc:subject>
          <dc:subject>element value design</dc:subject>
          <dc:subject>element value spread</dc:subject>
          <dc:subject>analog complex coefficent filter</dc:subject>
          <dc:description>多段RCポリフェーズフィルタの阻止域と通過域が同時に等リプルになる素子値の設計手法について報告する.等リプル特性を有するRCポリフェーズフィルタの素子値設計手法については数値計算を経て準最適な解を得る方法が知られているが, 厳密な設計手法は知られていない.本報告では, 係数マッチング法を用いることにより, 等リプル特性を持つRCポリフェーズフィルタの数値解による素子値設計手法を提案する.この手法は零点時定数配置順序に制約がなく, 全ての零点時定数の組み合わせに対して素子値の計算が可能となる.素子値広がりと面積和の観点から評価関数を定義し, 零点配置順序について検討した結果, 段数によって最適な配置順序が異なることを見出した.</dc:description>
          <dc:description>An element value design method for RC polyphase filters having equal ripple characteristics both in passband and stopband has been proposed. A sub-optimal design method for the equal ripple characteristics has been proposed previously [2]; however, any method that gives the exact element values for the equal ripple RC polyphase filters seems to have not been reported. This report presents a numerical design method for the equal ripple RC polyphase filters, which permits any sequence of the transmission zeros. Using this method, we investigated into relations between transmission-zero sequence and element-value spread. We found that there are zero sequences with much smaller element value spread than conventional descending or sacending order of zero sequences.</dc:description>
          <dc:description>conference paper</dc:description>
          <dc:publisher>電子情報通信学会</dc:publisher>
          <dc:date>2005-09-15</dc:date>
          <dc:format>application/pdf</dc:format>
          <dc:identifier>電子情報通信学会技術研究報告．CAS・NLP</dc:identifier>
          <dc:identifier>30</dc:identifier>
          <dc:identifier>CAS2005</dc:identifier>
          <dc:identifier>25</dc:identifier>
          <dc:identifier>30</dc:identifier>
          <dc:identifier>IEICE technical report. Nonlinear problems</dc:identifier>
          <dc:identifier>09135685</dc:identifier>
          <dc:identifier>https://kitami-it.repo.nii.ac.jp/record/8622/files/CAS2005-30.pdf</dc:identifier>
          <dc:identifier>https://kitami-it.repo.nii.ac.jp/records/8622</dc:identifier>
          <dc:language>jpn</dc:language>
          <dc:relation>110003292780</dc:relation>
          <dc:rights>c2005 by IEICE</dc:rights>
          <dc:rights>open access</dc:rights>
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