一种用于同步静止卫星监测的微型VLBI网
Micro VLBI network for GEO satellite monitoring
查看参考文献19篇
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文摘
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针对地球静止轨道(GEO)卫星全天时全天候高精度的监测需求,考虑传统甚长基线干涉(VLBI)测站高成本、高投入和GEO卫星专用观测时段有限等制约条件,研发了简易型VLBI观测系统,并组建了包括上海、都匀和乌鲁木齐三站的微型VLBI网(micro VLBI network,MVN),开展了并置站测试以及对GEO卫星亚太6C的连续监测,并评估了当前MVN的观测能力。结果表明MVN扣除系统差后的单站接收精度为2ns,各基线观测时延拟后残差约几纳秒,GEO目标实测位置精度为百米级(内外符精度分别约100m和400m)。不同于传统VLBI和其他GEO监测手段,MVN还具备全天时、全天候、低造价、易布设及易推广等特点,充分表明了其在GEO卫星监测领域的应用价值。 |
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其他语种文摘
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According to the requirements of all-time,all-weather and high precision geostationary orbit(GEO)satellite monitoring,a simple very long baseline interferometry(VLBI)observing system was developed and a micro VLBI network(MVN)including Shanghai,Duyun and Urumqi was built.Debugging in collocated stations was performed and GEO satellite named as Apstar6C was monitored by MVN,whose observing capability was evaluated.The receiving accuracy of single station without systematic errors was 2ns.The results show that the post-fit residuals of different baselines are about several nanoseconds.Moreover,the accuracy of observed GEO satellite orbit is in the level of 100m(internal and external accuracy of about 100mand 400mrespectively).Unlike traditional VLBI or other GEO monitoring techniques,MVN has features including all-time,all-weather,low cost,easy deployment and convenient marketing,showing its great application value in the field of GEO satellite monitoring. |
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来源
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中国空间科学技术（中英文）
,2020,40(5):119-125 【核心库】
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DOI
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10.16708/j.cnki.1000-758x.2020.0065
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关键词
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地球静止轨道
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甚长基线干涉测量
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微型VLBI网
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时延
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定轨
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能力评估
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地址
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中国科学院上海天文台, 上海, 200030
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中国科学院大学, 北京, 100049
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尼古拉耶夫天文台, 尼古拉耶夫, 54030
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黔南民族师范学院, 都匀, 558000
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中国科学院新疆天文台, 乌鲁木齐, 830011
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-758X |
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学科
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测绘学 |
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基金
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国家自然科学基金
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贵州省教育厅青年科技人才成长项目
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文献收藏号
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CSCD:6844034
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