| 世界各国日像仪主要性能比较 |
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| 引用本文： | 姬国枢,王威,何俊波.世界各国日像仪主要性能比较[J].天文研究与技术,2010,7(2). |
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| 作者姓名： | 姬国枢 王威 何俊波 |
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| 作者单位： | 中国科学院国家天文台,北京,100012 |
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| 基金项目： | 国家重大科研装备研制项目 |
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| 摘 要： | 本文是世界各国日像仪的天线阵性能汇集,包括日、俄、法、中、美等专用日像仪及美国、印度、巴西等兼作日像仪的天线阵,列出了几个典型天线阵列排列及接收系统。附录中列出了等口径及不等口径天线阵列的灵敏度及动态范围计算公式,同时列出了视场、角分辨率等公式。便于读者自行分析,计算,比较各天线阵列性能。
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| 关 键 词： | 日像仪 视场 时间分辩率 灵敏度 空间分辨率 动态范围 |
Comparison of the Key Performance Measures of World's Radioheliographs |
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| JI Guo-shu,WANG Wei,HE Jun-bo.Comparison of the Key Performance Measures of World's Radioheliographs[J].Astronomical Research & Technology,2010,7(2). |
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| Authors: | JI Guo-shu WANG Wei HE Jun-bo |
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| Institution: | JI Guo-shu,WANG Wei,HE Jun-bo(National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012,China) |
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| Abstract: | This paper compiles performance measures of antenna arrays of radioheliographs constructed by Japan,Russia,France,China,and U.S.America specially for observing the sun,and synthesis arrays of U.S.America,India,and Brazil for observing stars and the sun.Several typical antenna arrays and receivers are illustrated.The formulas of sensitivity and dynamic range for antenna arrays with equal or unequal antenna apertures are listed,together with those for sizes of fields of views and spatial resolutions.Readers c... |
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| Keywords: | Radioheliograph Field of view Temporal resolution Sensitivity Spatial resolution Dynamic range |
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