WEKO3
アイテム
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"ミュー・ロケットで打ち上げる工学実験探査機", "subitem_subject_scheme": "Other"}, {"subitem_subject": "測距", "subitem_subject_scheme": "Other"}, {"subitem_subject": "信号対雑音比", "subitem_subject_scheme": "Other"}, {"subitem_subject": "精度", "subitem_subject_scheme": "Other"}, {"subitem_subject": "帯域幅", "subitem_subject_scheme": "Other"}, {"subitem_subject": "群遅延", "subitem_subject_scheme": "Other"}, {"subitem_subject": "orbital position estimation", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "space navigation", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "very long base interferometry", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "asteroid mission", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "orbit determination", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Hayabusa", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "MUSES-C", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Asteroid Sample-return Spacecraft", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Mu Space Engineering Spacecraft", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "rangefinding", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "signal to noise ratio", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "accuracy", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "bandwidth", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "group delay", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "言語", 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Status report on VLBI application for space navigation of Hayabusa
https://jaxa.repo.nii.ac.jp/records/7584
https://jaxa.repo.nii.ac.jp/records/758460aa1e45-d5f8-4ac4-bf69-44f542354e12
Item type | 会議発表論文 / Conference Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Status report on VLBI application for space navigation of Hayabusa | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 軌道位置推定 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 宇宙航行 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 超長基線干渉法 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 小惑星ミッション | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 軌道決定 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | はやぶさ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | MUSES-C | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 小惑星探査機 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ミュー・ロケットで打ち上げる工学実験探査機 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 測距 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 信号対雑音比 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 精度 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 帯域幅 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 群遅延 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | orbital position estimation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | space navigation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | very long base interferometry | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | asteroid mission | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | orbit determination | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Hayabusa | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | MUSES-C | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Asteroid Sample-return Spacecraft | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Mu Space Engineering Spacecraft | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | rangefinding | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | signal to noise ratio | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | accuracy | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | bandwidth | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | group delay | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
その他のタイトル | ||||||
その他のタイトル | VLBIを使った軌道決定に向けたHayabusaの観察:現状報告 | |||||
著者 |
関戸, 衛
× 関戸, 衛× 市川, 隆一× 近藤, 哲朗× 竹内, 央× 小山, 泰弘× 川合, 栄治× 吉川, 真× 望月, 奈々子× 加藤, 隆二× 市川, 勉× Sekido, Mamoru× Ichikawa, Ryuichi× Kondo, Tetsuro× Takeuchi, Hiroshi× Koyama, Yasuhiro× Kawai, Eiji× Yoshikawa, Makoto× Mochizuki, Nanako× Kato, Takaji× Ichikawa, Tsutomu |
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著者所属 | ||||||
情報通信研究機構 | ||||||
著者所属 | ||||||
情報通信研究機構 | ||||||
著者所属 | ||||||
情報通信研究機構 | ||||||
著者所属 | ||||||
情報通信研究機構 | ||||||
著者所属 | ||||||
情報通信研究機構 | ||||||
著者所属 | ||||||
情報通信研究機構 | ||||||
著者所属 | ||||||
宇宙航空研究開発機構 宇宙科学研究本部 | ||||||
著者所属 | ||||||
宇宙航空研究開発機構 宇宙科学研究本部 | ||||||
著者所属 | ||||||
宇宙航空研究開発機構 宇宙科学研究本部 | ||||||
著者所属 | ||||||
宇宙航空研究開発機構 宇宙科学研究本部 | ||||||
著者所属(英) | ||||||
en | ||||||
National Institute of Information and Communications Technology | ||||||
著者所属(英) | ||||||
en | ||||||
National Institute of Information and Communications Technology | ||||||
著者所属(英) | ||||||
en | ||||||
National Institute of Information and Communications Technology | ||||||
著者所属(英) | ||||||
en | ||||||
National Institute of Information and Communications Technology | ||||||
著者所属(英) | ||||||
en | ||||||
National Institute of Information and Communications Technology | ||||||
著者所属(英) | ||||||
en | ||||||
National Institute of Information and Communications Technology | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency Institute of Space and Astronautical Science | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency Institute of Space and Astronautical Science | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency Institute of Space and Astronautical Science | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency Institute of Space and Astronautical Science | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構宇宙科学研究本部 | |||||
出版者(英) | ||||||
出版者 | Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS) | |||||
書誌情報 |
第15回アストロダイナミクスシンポジウム講演後刷り集 2005 en : Proceedings of 15th Workshop on JAXA Astrodynamics and Flight Mechanics p. 117-122, 発行日 2006-03 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | VLBI(Very Long Baseline Interferometry)を宇宙飛翔体のナビゲーションに応用する技術的基礎を確立するため、小惑星探査機はやぶさ(MUSES-C: Asteroid Sample-return Spacecraft)を対象に相対VLBI実験を行ってきた。観測には、日本国内のVLBI関連研究機関のアンテナが参加し、レンジ信号、およびテレメトリ信号の観測をおこなった。国内基線基線では基線長がそれほど長く取れないため、高い角度分解能を得るためには、高い遅延分解能を必要とする。遅延計測精度は信号のタイプに依存し、信号対雑音比(SNR: Signal to Noise Ratio)と有効帯域幅で特徴付けられる。これまでに観測を行ったデータの遅延計測精度とSNRの関係を、信号のタイプごとにプロットすると、(1)レンジ信号はテレメトリ信号より約4倍程度遅延計測精度がよい。(2)レンジ信号を使って1ナノ秒以下の群遅延計測精度を達成するためには、SNRが1,000以上必要である、といったことが明らかになってきた。従って、ナノ秒以下の遅延計測精度を達成するには、信号形態の改善も検討する必要があると考えられる。 | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | To establish the technical basis of using VLBI (Very Long Baseline Interferometry) for spacecraft navigation, Delta VLBI experiments were performed for spacecraft Hayabusa (MUSES-C: Asteroid Sample-return Spacecraft). Several domestic VLBI stations are participated in the observation, and range and telemetry signal are observed. Since the lengths of Japanese domestic baselines are not so long, high resolution of delay measurement is required to get high angular resolution. Precision of delay measurement depends on the signal type. And group delay is characterized by Signal to Noise Ratio (SNR) and Effective Band Width (EBW). From the plot of delay precision versus SNR, following things are confirmed. (1) Range signal is about four times better precision than telemetry signal. (2) Delay precision better than 1 nano sec is available when SNR is more than 1,000 in case of range signal. Therefore it may be necessary to consider to use other type of signal, which has wider EBW, to achieve sub-nano second delay resolution. | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0063480019 |