{"created":"2023-05-15T12:35:06.284355+00:00","id":3932,"links":{},"metadata":{"_buckets":{"deposit":"e4227085-fcb1-4097-b9fe-d26fddb19937"},"_deposit":{"created_by":3,"id":"3932","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"3932"},"status":"published"},"_oai":{"id":"oai:nitech.repo.nii.ac.jp:00003932","sets":["31"]},"author_link":["11304","8540"],"item_10001_alternative_title_24":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"キョクセイギョ　２ジ　IIRガタ　ADF　ノ　ヘイレツ　セツゾク　ニヨル　エコー　キャンセラ　ノ　シュウソク　セイノウ　カイゼン"},{"subitem_alternative_title":"Improvement of convergence characteristics of a pole-controlled IIR echo canceler"}]},"item_10001_biblio_info_28":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1988-02-20","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"410","bibliographicPageStart":"404","bibliographicVolumeNumber":"J71-A","bibliographic_titles":[{"bibliographic_title":"電子通信学会論文誌. A"}]}]},"item_10001_description_36":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"既に著者らは，独立制御される2次IIR型ADF（Adaptive Degital Filter）の並列接続によるエコーキャンセラを提案している．このエコーキャンセラにおいては，各2次IIR型ADFが独立に制御される．ADFの極は，最初エコー経路の伝達特性に基づいて略配置された後，極の微小制御によってエコー経路の有する極に近づけられていく．しかし略配置された位置によっては微小制御がうまく動作しない場合がある．本論文では，先に検討した極微小制御方式の課題を挙げ，その原因を明らかにした．また，2次IIR形ADFとエコー経路の極の関係から求まる等ERLF曲線の考え方を示した．更に，極の微小制御において使用される補助極の決め方に対して，等ERLE曲線を導入することによる新しい補助極決定を提案した．最後に，本補助極決定法を同いた極微小制御のシミュレーション結果を示す．これによれば，本方式を採用したエコーキャンセラは，先に検討した方式によるものに比較して2倍以上の収束速度が得られることが明らかになった．","subitem_description_type":"Other"}]},"item_10001_description_38":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_10001_full_name_27":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{},{}],"names":[{"name":"Takumi, Ichi"}]}]},"item_10001_publisher_29":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Institute of Electronics, Information and Communication Engineers"}]},"item_10001_source_id_30":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"09135707","subitem_source_identifier_type":"ISSN"}]},"item_10001_source_id_32":{"attribute_name":"書誌レコードID（NCID）","attribute_value_mlt":[{"subitem_source_identifier":"AN10013345","subitem_source_identifier_type":"NCID"}]},"item_10001_version_type_33":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"内匠, 逸"},{"creatorName":"タクミ, イチ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{},{}]},{"creatorNames":[{"creatorName":"畑, 雅恭"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-01-23"}],"displaytype":"detail","filename":"J71-A_404.pdf","filesize":[{"value":"622.7 kB"}],"format":"application/pdf","license_note":"Copyright(c)1988 IEICE　http://search.ieice.org/index.html","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"本文_fulltext","url":"https://nitech.repo.nii.ac.jp/record/3932/files/J71-A_404.pdf"},"version_id":"b333215f-bcdb-438b-96b4-48e2dd3207e3"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"極制御2次IIR形ADFの並列接続によるエコ-キャンセラの収束性能改善","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"極制御2次IIR形ADFの並列接続によるエコ-キャンセラの収束性能改善"}]},"item_type_id":"10001","owner":"3","path":["31"],"pubdate":{"attribute_name":"公開日","attribute_value":"2013-06-25"},"publish_date":"2013-06-25","publish_status":"0","recid":"3932","relation_version_is_last":true,"title":["極制御2次IIR形ADFの並列接続によるエコ-キャンセラの収束性能改善"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-05-16T14:27:15.541800+00:00"}