{"created":"2023-06-20T15:04:03.669320+00:00","id":33270,"links":{},"metadata":{"_buckets":{"deposit":"d9129919-d95a-481b-84d4-7c58290026ce"},"_deposit":{"created_by":1,"id":"33270","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"33270"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00033270","sets":["1887:1890","1896:1898:1899:1911"]},"author_link":["415976","415958","415972","415963","415959","415948","415950","415943","415945","415957","415964","415940","415942","415974","415960","415967","415962","415973","415965","415939","415969","415949","415947","415966","415975","415941","415970","415955","415952","415954","415961","415953","415944","415951","415946","415968","415971","415956"],"item_9_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"The Phase Transfer System for the Scientific Satellite HALCA at the Usuda Ground Station"}]},"item_9_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2001-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"31","bibliographicPageStart":"1","bibliographicVolumeNumber":"114","bibliographic_titles":[{"bibliographic_title":"宇宙科学研究所報告"}]}]},"item_9_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"科学衛星「はるか」（打ち上げ前の名称MUSES-B)のために開発した位相基準信号伝送システムに関して，臼田局システムを中心に述べている．位相基準信号の伝送 (phase transfer) は位相安定度の高い標準周波数信号を地上局から衛星へ電波によって送るもので，スペースVLBI（超長基線干渉計）を成立させるために必要な基本技術の一つである．「はるか」では，電離層の影響を配慮して，アップリンクの周波数を15.3GHz，ダウンリンクの周波数を14.2GHzとし，臼田宇宙空間観測所に，次のようなシステムを形成した．（１）水素メーザ原子周波数標準器を源発信器として，地上局から，衛星における受信周波数が丁度15.3GHzになるように，衛星の軌道運動によるドップラー周波数シフトを補正して送信し，（２）衛星上の位相同期受信機出力からコヒーレントに生成された周波数14.2GHzのダウンリンク送出波を，地上局において受信，（３）その受信信号から，往復(two-way) ループの位相と，往復のドップラー周波数シフトを計測する．システムの設計・製作に当たっては，高位相安定度達成のために，機器設計，回路構成，温度安定度などに大きな注意を払った．地上系の折り返し試験を衛星シミュレータを用いて行い，製作したシステムが目標とした位相安定度特性を満たしていることを確認した．「はるか」打ち上げ後，地上－衛星－地上のループにおいて，システムの機能と性能の確認を行った．以後，本システムは「はるか」によるスペースVLBI観測（VSOP観測）において，その役割を十分に果たしてきている．","subitem_description_type":"Abstract"}]},"item_9_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"The phase transfer, supplying an extremely stable frequency-reference signal to spacecraft by a radio wave from ground, is one of the key technologies necessary for realizing space VLBI (Very Long Baseline Interferometry). This paper presents the phase transfer system for the scientific satellite HALCA (the name before the launch was MUSES-B) which was launched in 1997 by the Institute of Space and Astronautical Science (ISAS) and has become the first space VLBI satellite of the world. The phase transfer for HALCA is performed by using a two-way link, composed of a 15.3GHz ground-to-satellite link and a 14.2GHz satellite-to-ground one. A ground system for the phase transfer has been developed at the Usuda Deep Space Center of ISAS with such functions as: (1) Transmitting the up-link signal which frequency is Doppler-compensated such that the frequency becomes exactly 15.3GHz at the spacecraft, (2) receiving the downlink signal which has been transmitted from the spacecraft with the frequency of 14.2GHz keeping its phase coherent to the received up-link signal, and (3) detecting the loop phase and the two-way Doppler frequency shift from the received down-link signal. Great cares have been paid for achieving high phase stability in the design of the total system, each equippment and the circuits, of the ground station. A loop test at the Usuda station, using a satellite simulator, has shown that the ground system well satisfies the coherency requirement. For HALCA in the orbit, the phase transfer from the Usuda station has operated satisfactory, attaining phase stability necessary for the space VLBI observations under the VLBI Space Observatory Programme (VSOP).","subitem_description_type":"Other"}]},"item_9_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: SA0200043000","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":"0285-2853","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":"AN00354474","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":"国立天文台"},{"subitem_text_value":"宇宙科学研究所"},{"subitem_text_value":"日本電気株式会社"},{"subitem_text_value":"日本電気株式会社"},{"subitem_text_value":"国立天文台"},{"subitem_text_value":"宇宙科学研究所"},{"subitem_text_value":"宇宙科学研究所"},{"subitem_text_value":"国立天文台"},{"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":"国立天文台"},{"subitem_text_value":"宇宙科学研究所"},{"subitem_text_value":"宇宙科学研究所"},{"subitem_text_value":"日本電気株式会社"},{"subitem_text_value":"日本電気株式会社"},{"subitem_text_value":"三菱電機株式会社"},{"subitem_text_value":"三菱電機株式会社"}]},"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 Astronautical Science (ISAS)"},{"subitem_text_language":"en","subitem_text_value":"National Astronomical Observatory"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science (ISAS)"},{"subitem_text_language":"en","subitem_text_value":"NEC Corporation"},{"subitem_text_language":"en","subitem_text_value":"NEC Corporation"},{"subitem_text_language":"en","subitem_text_value":"National Astronomical Observatory"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science (ISAS)"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science (ISAS)"},{"subitem_text_language":"en","subitem_text_value":"National Astronomical Observatory"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science (ISAS)"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science (ISAS)"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science (ISAS)"},{"subitem_text_language":"en","subitem_text_value":"National Astronomical Observatory"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science (ISAS)"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science (ISAS)"},{"subitem_text_language":"en","subitem_text_value":"NEC Corporation"},{"subitem_text_language":"en","subitem_text_value":"NEC Corporation"},{"subitem_text_language":"en","subitem_text_value":"Mitsubishi Electric Corporation"},{"subitem_text_language":"en","subitem_text_value":"Mitsubishi Electric Corporation"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"廣澤, 春任"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"川口, 則幸"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"山本, 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幸伸"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"松本, 操一"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"佐藤, 巧"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hirosawa, Haruto","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kawaguchi, Noriyuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yamamoto, Zen-ichi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sagawa, Kazumi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Masuda, Yu-ichi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kobayashi, Hideyuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Murata, Yasuhiro","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hirabayashi, 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