{"created":"2023-06-20T15:03:02.441505+00:00","id":32138,"links":{},"metadata":{"_buckets":{"deposit":"6df0d6e7-7408-480a-aed2-6b913a2e80a5"},"_deposit":{"created_by":1,"id":"32138","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"32138"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00032138","sets":["1887:1890","1896:1898:1899:1910"]},"author_link":["407458","407454","407455","407457","407456","407459"],"item_9_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Location of Aircraft by Acoustic Method"}]},"item_9_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1973-10","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicPageEnd":"869","bibliographicPageStart":"854","bibliographicVolumeNumber":"9","bibliographic_titles":[{"bibliographic_title":"東京大学宇宙航空研究所報告"}]}]},"item_9_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"本論文は相関法により比軟的近距離にある航空機の位置を音響的に測定する方法について述べたものである.原理は観測点を2つ設け,それらを含む垂直面を航空機が通過する位置を三角法によって求めるものである.そのための観測点からの航空機の仰角の測定に相関法を用いる.すなわち,航空機から各観測点に設置された2つのマイクロフォンまでの距離差をマイクロフォン出力の相互相関々数の最大値の位置から求め,この値から仰角を決定するものである.航空機の騒音源は点音源ではなく大きな広がりを持っており,本測定法によって定まる音源の中心点について検討がなされる.また,気温や風のような気象条件は音波の伝搬に影響を与えるが,その影響とそれに対する補正法についても検討を加える.基礎実験の結果,本手法が十分実用になるものであり,騒音監視システムや航空安全設備などへ応用可能であることが示された.","subitem_description_type":"Abstract"}]},"item_9_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"This paper describes the study on the measurement of the aircraft positions at near distance applying a correlation technique to the aircraft noise. The acoustic path difference between two microphones placed at an observation point is determined from the peak of the cross-correlation function of the noise signals obtained by those microphones, giving the elevation angle of the aircraft. The elevation angles at two observation points determine the cross-point of the flight path of the aircraft on the vertical plane including those two points. The noise sources of the aircraft spread widely and the position of the center of the sources located by this measuring method is considered. The effects and corrections of the weather conditions such as the temperature or wind, which affect the acoustic wave propagation, are also discussed in this paper. The results of the preriminary experiment show the possibility of the application to the practical use such as noise monitoring system.","subitem_description_type":"Other"}]},"item_9_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: SA0125265000","subitem_description_type":"Other"}]},"item_9_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学宇宙航空研究所"}]},"item_9_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0563-8100","subitem_source_identifier_type":"ISSN"}]},"item_9_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00161914","subitem_source_identifier_type":"NCID"}]},"item_9_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学宇宙航空研究所"},{"subitem_text_value":"東京大学宇宙航空研究所"},{"subitem_text_value":"東京大学宇宙航空研究所"}]},"item_9_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Aeronautical Science"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Aeronautical Science"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Aeronautical Science"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"小畑, 秀文"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"石井, 泰"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"五十嵐, 寿一"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"KOBATAKE, Hidefumi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"ISHII, Yasushi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"IGARASHI, Juichi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-01-24"}],"displaytype":"detail","filename":"SA0125265.pdf","filesize":[{"value":"1.5 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"SA0125265.pdf","url":"https://jaxa.repo.nii.ac.jp/record/32138/files/SA0125265.pdf"},"version_id":"d26fb881-1f42-401d-9a12-da6efd1f81eb"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"音響的方法による航空機の位置標定","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"音響的方法による航空機の位置標定"}]},"item_type_id":"9","owner":"1","path":["1890","1910"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"32138","relation_version_is_last":true,"title":["音響的方法による航空機の位置標定"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T00:40:02.273423+00:00"}