{"created":"2023-06-20T15:03:59.423845+00:00","id":33191,"links":{},"metadata":{"_buckets":{"deposit":"962b5246-3ece-4b47-be4e-8c8dfd09d93b"},"_deposit":{"created_by":1,"id":"33191","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"33191"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00033191","sets":["1887:1890","1896:1898:1899:1912"]},"author_link":["415241","415247","415242","415243","415245","415246","415248","415244"],"item_9_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Operating Conditions of Tele-command Receiver during Balloon Flight"}]},"item_9_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1998-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"37","bibliographicPageStart":"27","bibliographicVolumeNumber":"37","bibliographic_titles":[{"bibliographic_title":"宇宙科学研究所報告. 特集: 大気球研究報告"}]}]},"item_9_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"現用のコマンド受信機モデルが旧型となり新しいモデルを開発した機会に, 飛翔中の受信強度を出力しテレメータでモニタできる機能を付加した。この新しい機能により, いくつの気球実験で飛翔中の受信強度が詳しく観測された。その結果, 以下の事実が判明した。(1) 海上を遠距離まで飛翔する場合, 海面反射波との干渉による効果は大きく, 受信マージンに影響すること。(2) 地上通信局の真上近くを飛翔する場合, 送・受アンテナの指向方向および偏波面の不一致による電界強度の低下が大きいこと。(3) 外来電波と思われる信号は存在するが, 観測された一例では, 強度は弱く持続時間も短く, 影響は小さいと思われること。こうした, 観測データにより, コマンド受信機が搭載機器からのノイズで抑圧を受ける場合の合理的な許容値を決めることができた。そこで, コマンドシステムが放球可能な性能を保持しているか否かを判定するために, 放球場で抑圧量を簡便かつ正確に測定する方式を考案し実施したところ良好な結果を得た。観測された受信データから明らかになった上記3点とフィールド測定法を示し, コマンドシステムの信頼性の向上に寄与していることを述べる。","subitem_description_type":"Abstract"}]},"item_9_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"The revised model of the tele-command receiver for balloon use has an additional function that measures strength of a receiving signal. The data is transferred to the ground station by the telemetry. Through the several balloon flights, many interesting phenomena concerned with the operating conditions of the receiver have been observed as following. (1) In case of a long distance flight, the interferometric effect caused by the radio wave reflected from the sea surface is quite large. (2) When the balloon flies over near radio station, signal strength becomes very small by the different alignment and polarization between transmitting and receiving antennas. (3) The jamming by external signals must not so serious according to a few examples. Based on those observation results, the minimum receiving gain can be estimated to keep stable command transmission. A simple field test method is developed for the measurement of the receiving gain suppressed by the noise that comes from other on board instruments. The tentative results of this field test were satisfactory for the improvement of the reliability of the tele-command system.","subitem_description_type":"Other"}]},"item_9_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: SA0167110000","subitem_description_type":"Other"}]},"item_9_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙科学研究所"}]},"item_9_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Institute of Space and Astronautical Science"}]},"item_9_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0285-9920","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":"AN00354485","subitem_source_identifier_type":"NCID"}]},"item_9_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"宇宙科学研究所"},{"subitem_text_value":"宇宙科学研究所"},{"subitem_text_value":"宇宙科学研究所"},{"subitem_text_value":"宇宙科学研究所"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"矢島, 信之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"太田, 茂雄"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"本田, 秀之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"他気球グループ"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"YAJIMA, Nobuyuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"OHTA, Shigeo","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"HONDA, Hideyuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Balloon, Group","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":"SA0167110.pdf","filesize":[{"value":"865.8 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"SA0167110.pdf","url":"https://jaxa.repo.nii.ac.jp/record/33191/files/SA0167110.pdf"},"version_id":"c4aa5c8b-41bb-4344-88e7-8a6951ddbd38"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"気球","subitem_subject_scheme":"Other"},{"subitem_subject":"遠隔コマンド","subitem_subject_scheme":"Other"},{"subitem_subject":"海面反射","subitem_subject_scheme":"Other"},{"subitem_subject":"電波干渉","subitem_subject_scheme":"Other"}]},"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":"飛翔中のコマンド受信機の動作電波環境","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"飛翔中のコマンド受信機の動作電波環境"}]},"item_type_id":"9","owner":"1","path":["1890","1912"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"33191","relation_version_is_last":true,"title":["飛翔中のコマンド受信機の動作電波環境"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T00:13:21.396710+00:00"}