{"created":"2023-05-15T12:35:14.050532+00:00","id":4059,"links":{},"metadata":{"_buckets":{"deposit":"8a0e3f9a-8371-45ac-aaea-ab4997c24618"},"_deposit":{"created_by":91,"id":"4059","owners":[91],"pid":{"revision_id":0,"type":"depid","value":"4059"},"status":"published"},"_oai":{"id":"oai:nitech.repo.nii.ac.jp:00004059","sets":["31"]},"author_link":["3040","3040","4498","11866","11867","4496"],"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":"シツナイ　ムセン　ツウシン　ノタメノ　MUSICホウ　ニヨル　タジュウハ　ノ　トウライ　ホウコウ　ト　デンパン　チエン　ジカン　ノ　スイテイ　","subitem_alternative_title_language":"ja-Kana"},{"subitem_alternative_title":"Estimation of direction of arrival and delay profile of mutipath waves by MUSIC algorithm for indoor radio communications.","subitem_alternative_title_language":"en"}]},"item_10001_biblio_info_28":{"attribute_name":"bibliographic_information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1990-11-20","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"11","bibliographicPageEnd":"795","bibliographicPageStart":"786","bibliographicVolumeNumber":"J73-B2","bibliographic_titles":[{"bibliographic_title":"電子情報通信学会論文誌. B-2, 通信. 2, 無線通信・無線応用","bibliographic_titleLang":"ja"}]}]},"item_10001_description_36":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"近年，ビル内における高速ディジタル無線通信方式の実現が強く期待されている．これにはまず現実のビル内における多重波伝搬環境の把握が必要となるが，これまで簡便かつ有効な測定法がないため，高速ディジタル通信の可能性を評価するのに十分な測定が行われていないのが現状である．そこで本論文では室内多重波伝搬構造を解明するためにMUSIC法を用いた簡便かつ高分解能な多重波到来方向推定法および多重波伝搬遅延時間推定法を提案し，その有効性を計算機シミュレーションおよび実験により確認した．多重波到来方向推定法に関してはダイポールを用いた半径 0.75から1波長程度の回転走査により10°以上離れて到来する波について正確に推定が行え，5°の場合にも若干誤差が大きくなるが2波の分離が可能であることが示された．多重波伝搬遅延時間推定法に関しては使用周波数帯域幅が100MHzの場合に，3ns以上の遅延時間差を正確に推定することができ，2nsの場合にもその推定値に多少の誤差が見られるものの2波の分離はできることが示された．また，実際に室内で測定を行った結果，10波程度の多重波が観測でき，非常に複雑な伝搬環境であることが確認された．","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_10001_full_name_27":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"3040","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"1000040195219","nameIdentifierScheme":"NRID","nameIdentifierURI":"http://rns.nii.ac.jp/nr/1000040195219"}],"names":[{"name":"Kikuma, Nobuyoshi"}]}]},"item_10001_publisher_29":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Institute of Electronics, Information and Communication Engineers","subitem_publisher_language":"en"}]},"item_10001_source_id_30":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0915-1885","subitem_source_identifier_type":"ISSN"}]},"item_10001_source_id_32":{"attribute_name":"item_10001_source_id_32","attribute_value_mlt":[{"subitem_source_identifier":"AN10071159","subitem_source_identifier_type":"NCID"}]},"item_10001_version_type_33":{"attribute_name":"出版タイプ","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":"菊間, 信良"},{"creatorName":"キクマ, ノブヨシ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"3040","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"1000040195219","nameIdentifierScheme":"NRID","nameIdentifierURI":"http://rns.nii.ac.jp/nr/1000040195219"}]},{"creatorNames":[{"creatorName":"安西, 睦"}],"nameIdentifiers":[{"nameIdentifier":"4498","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小川, 勝"}],"nameIdentifiers":[{"nameIdentifier":"11866","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山田, 幸一"}],"nameIdentifiers":[{"nameIdentifier":"11867","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"稲垣, 直樹"}],"nameIdentifiers":[{"nameIdentifier":"4496","nameIdentifierScheme":"WEKO"}]}]},"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":"J73-B2_786.pdf","filesize":[{"value":"782.2 kB"}],"format":"application/pdf","license_note":"Copyright (c) 1990 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/4059/files/J73-B2_786.pdf"},"version_id":"1c3a18af-81db-4160-8fda-7f05b10feef9"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"item_resource_type","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"室内無線通信のためのMUSIC法による多重波の到来方向と伝搬遅延時間の推定","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"室内無線通信のためのMUSIC法による多重波の到来方向と伝搬遅延時間の推定","subitem_title_language":"ja"}]},"item_type_id":"10001","owner":"91","path":["31"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2013-06-25"},"publish_date":"2013-06-25","publish_status":"0","recid":"4059","relation_version_is_last":true,"title":["室内無線通信のためのMUSIC法による多重波の到来方向と伝搬遅延時間の推定"],"weko_creator_id":"91","weko_shared_id":-1},"updated":"2025-03-13T02:14:23.798738+00:00"}