| 我国新一代VLBI数字基带转换器研制进展 |
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| 引用本文： | 朱人杰,张秀忠,韦文仁,项英,李斌,吴亚军,王锦清,赵融冰,舒逢春,薛祝和,凌权宝,罗近涛,陈岚.我国新一代VLBI数字基带转换器研制进展[J].天文学进展,2011,29(2):207-217. |
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| 作者姓名： | 朱人杰 张秀忠 韦文仁 项英 李斌 吴亚军 王锦清 赵融冰 舒逢春 薛祝和 凌权宝 罗近涛 陈岚 |
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| 作者单位： | 中国科学院,上海天文台,上海,200030 |
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| 摘 要： | 数字化是目前设备研制发展的趋势,介绍了中国科学院上海天文台利用超大规模集成电路结合软件无线电技术,自主研发的我国新一代VLBI数字基带转换器(Chinese Data Acquisition System,简称CDAS).文中描述了设备的工作原理及其组成,并以VLBI观测实验数据证明其可行性.与原有的模拟设备(Anal...
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| 关 键 词： | VLBI 射频 中频 基带 下变频 DDS |
The Progress of Modern Chinese Data Acquisition System |
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| ZHU Ren-jie,ZHANG Xiu-zhong,WEI Wen-ren,XIANG Ying,LI Bin,WU Ya-jun,WANG Jin-qing,XUE Zhu-he,ZHAO Rong-bing,SHU Feng-chun,LING Quan-bao,LUO Jin-tao,CHEN Lan.The Progress of Modern Chinese Data Acquisition System[J].Progress In Astronomy,2011,29(2):207-217. |
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| Authors: | ZHU Ren-jie ZHANG Xiu-zhong WEI Wen-ren XIANG Ying LI Bin WU Ya-jun WANG Jin-qing XUE Zhu-he ZHAO Rong-bing SHU Feng-chun LING Quan-bao LUO Jin-tao CHEN Lan |
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| Institution: | ZHU Ren-jie,ZHANG Xiu-zhong,WEI Wen-ren,XIANG Ying,LI Bin,WU Ya-jun,WANG Jin-qing,XUE Zhu-he,ZHAO Rong-bing,SHU Feng-chun,LING Quan-bao,LUO Jin-tao,CHEN Lan (Shanghai Astronomical Observatory,Chinese Academy of Sciences,Shanghai 200030,China) |
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| Abstract: | With the development of software radio technologies,especially the using of programmable components,more and more equipments can be digitalized for its convenience,efficiency and reliability. The Chinese Data Acquisition System(CDAS) independently designed by Shanghai Astronomical Observatory of CAS is a digitalized base band covertor for VLBI,which can take the place of traditional analogy base band covertor.It consists of two parts.One is responsible for AGC (Automatic Gain Control) and anti-aliasing,whic... |
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| Keywords: | VLBI radio IF base-band down-convert DDS |
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