{"created":"2023-06-20T14:43:59.876474+00:00","id":11383,"links":{},"metadata":{"_buckets":{"deposit":"47db932c-c35b-4d2e-b49d-faf0743ab935"},"_deposit":{"created_by":1,"id":"11383","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"11383"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00011383","sets":["1543:1580:1594","1887:1891"]},"author_link":["100019","100015","100018","100014","100016","100017","100013","100012"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Study for redundant computing system based on High-speed Serial Bus with optical voting system"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2005-09","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"540","bibliographicPageStart":"537","bibliographic_titles":[{"bibliographic_title":"第5回宇宙科学シンポジウム"},{"bibliographic_title":"Proceedings of the 5th Space Science Symposium","bibliographic_titleLang":"en"}]}]},"item_5_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"衛星搭載用の計算機では、放射線エラーに対する耐性を高めるためにモジュールを多重化し、多数決回路を用いることで冗長性を高める設計がよく行われる。しかし、従来のパラレルバス型の計算機の冗長化による配線量の急激な増加は、信号間の同期設計をより困難にするため、システムの動作速度を制限し、結果として計算機自体の性能向上を妨げる要因となってきた。本研究ではシステムの高性能化のために計算機バスがシリアル化されることを想定し、従来のデジタル論理回路式の多数決では対応できないような高速なシリアルバスに適用可能な多数決回路を提案する。本システムは高速光トランシーバと、光を合成する光カプラから構成され、伝送線路長などの最適化を行えば原理的には3Gbps程度のデータレートにも対応できるものである。実験では光通信用の機器を用いたシステムを構築して評価を行い、その結果1Gbpsのデータレートにおいて実際に多数決が取れることが確認できた。","subitem_description_type":"Abstract"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0049122129","subitem_description_type":"Other"}]},"item_5_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構宇宙科学研究本部"}]},"item_5_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学"},{"subitem_text_value":"総合研究大学院大学"},{"subitem_text_value":"宇宙航空研究開発機構 宇宙科学研究本部"},{"subitem_text_value":"宇宙航空研究開発機構 宇宙科学研究本部"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"University of Tokyo"},{"subitem_text_language":"en","subitem_text_value":"Graduate University for Advanced Studies"},{"subitem_text_language":"en","subitem_text_value":"Japan Aerospace Exploration Agency Institute of Space and Astronautical Science"},{"subitem_text_language":"en","subitem_text_value":"Japan Aerospace Exploration Agency Institute of Space and Astronautical Science"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"柳川, 善光"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"高原, 卓也"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"水野, 貴秀"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"斎藤, 宏文"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yanagawa, Yoshimitsu","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Takahara, Takuya","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Mizuno, Takahide","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Saito, Hirobumi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"宇宙用計算機","subitem_subject_scheme":"Other"},{"subitem_subject":"光データ処理","subitem_subject_scheme":"Other"},{"subitem_subject":"論理回路","subitem_subject_scheme":"Other"},{"subitem_subject":"半導体レーザ","subitem_subject_scheme":"Other"},{"subitem_subject":"信頼性","subitem_subject_scheme":"Other"},{"subitem_subject":"冗長性","subitem_subject_scheme":"Other"},{"subitem_subject":"同期","subitem_subject_scheme":"Other"},{"subitem_subject":"多数決演算","subitem_subject_scheme":"Other"},{"subitem_subject":"シリアルバス","subitem_subject_scheme":"Other"},{"subitem_subject":"光投票システム","subitem_subject_scheme":"Other"},{"subitem_subject":"アイパターン","subitem_subject_scheme":"Other"},{"subitem_subject":"Rocket I/O","subitem_subject_scheme":"Other"},{"subitem_subject":"光通信","subitem_subject_scheme":"Other"},{"subitem_subject":"spaceborne computer","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"optical data processing","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"logic circuit","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"semiconductor laser","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"reliability","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"redundancy","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"synchronism","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"majority operation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"serial bus","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"optical voting system","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"eye pattern","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Rocket I/O","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"optical communication","subitem_subject_language":"en","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":"conference 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