{"created":"2025-01-19T01:28:03.930284+00:00","updated":"2025-01-19T11:40:00.556832+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00228934","sets":["1164:2592:11085:11360"]},"path":["11360"],"owner":"44499","recid":"228934","title":["独立性仮定に基づく周波数帯域に依存しない空間信号処理の検討"],"pubdate":{"attribute_name":"公開日","attribute_value":"2023-11-09"},"_buckets":{"deposit":"7d507f8e-f4dc-45b2-bf83-893939f5e4a6"},"_deposit":{"id":"228934","pid":{"type":"depid","value":"228934","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"独立性仮定に基づく周波数帯域に依存しない空間信号処理の検討","author_link":["614817","614819","614818"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"独立性仮定に基づく周波数帯域に依存しない空間信号処理の検討"},{"subitem_title":"A Study of Frequency Band-Independent Spatial Signal Processing Based on Statistical Independency Between Sound Sources","subitem_title_language":"en"}]},"item_type_id":"4","publish_date":"2023-11-09","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"古澤,魁"},{"subitem_text_value":"陶山,健仁"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Department of Electrical and Electronic Engineering, School of Engineering, Tokyo Denki University","subitem_text_language":"en"},{"subitem_text_value":"Department of Electrical and Electronic Engineering, School of Engineering, Tokyo Denki University","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/228934/files/IPSJ-AL23195014.pdf","label":"IPSJ-AL23195014.pdf"},"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-AL23195014.pdf","filesize":[{"value":"1.9 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"0","billingrole":"9"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_login","version_id":"f278e53e-7765-40cc-9133-73b6d342220d","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2023 by the Institute of Electronics, Information and Communication Engineers This SIG report is only available to those in membership of the SIG."}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"古澤, 魁"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"陶山, 健仁"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Kai, Furusawa Kenji Suyama","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN1009593X","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-8566","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"実環境における指向性形成法として複数の複素重み付け加算回路出力の乗算に基づく手法が提案されている．この手法は，波長の長い低周波数帯域において緩慢な指向特性となるため，抑圧性能が低下する．周波数帯域に依存しない抑圧性能の実現のため，音源方向情報に加え音源信号間の統計的独立性を仮定する．本研究では，複素重み付け加算回路の出力信号に対して周波数領域 ICA を適用する手法を提案する．実環境実験結果より提案手法の有効性を示す．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"A method based on multiple weighted sum circuits has been proposed as a method of directivity formation in real– world environments. This method has slow directivity characteristics at low frequencies corresponding to long wavelengths, and thus a suppression performance is degrated. In order to achieve suppression performance independent of frequency band- width, we assume statistical independence between source signals in addition to source direction information. In this study, we propose a method to apply frequency-domain ICA to the output signals of a multiple weighted sum circuits. The effectiveness of the proposed method is demonstrated through real-world experimental results.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"6","bibliographic_titles":[{"bibliographic_title":"研究報告アルゴリズム（AL）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2023-11-09","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"14","bibliographicVolumeNumber":"2023-AL-195"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":228934,"links":{}}