A Subsystem Test Bed for Chinese Spectral Radioheliograph
文献类型：期刊论文
| 作者 | Zhao, An1,2 ; Yan, Yihua1; Wang, Wei1
|
| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA
 |
| 出版日期 | 2014-11-14 |
| 卷号 | 31 |
| 关键词 | digital down conversion geostationary satellite radioheliograph test bed |
| 英文摘要 | The Chinese Spectral Radioheliograph is a solar dedicated radio interferometric array that will produce high spatial resolution, high temporal resolution, and high spectral resolution images of the Sun simultaneously in decimetre and centimetre wave range. Digital processing of intermediate frequency signal is an important part in a radio telescope. This paper describes a flexible and high-speed digital down conversion system for the CSRH by applying complex mixing, parallel filtering, and extracting algorithms to process IF signal at the time of being designed and incorporates canonic-signed digit coding and bit-plane method to improve program efficiency. The DDC system is intended to be a subsystem test bed for simulation and testing for CSRH. Software algorithms for simulation and hardware language algorithms based on FPGA are written which use less hardware resources and at the same time achieve high performances such as processing high-speed data flow (1 GHz) with 10 MHz spectral resolution. An experiment with the test bed is illustrated by using geostationary satellite data observed onMarch 20, 2014. Due to the easy alterability of the algorithms on FPGA, the data can be recomputed with different digital signal processing algorithms for selecting optimum algorithm. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000348495600001 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6600]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, An,Yan, Yihua,Wang, Wei. A Subsystem Test Bed for Chinese Spectral Radioheliograph[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA,2014,31. |
| APA | Zhao, An,Yan, Yihua,&Wang, Wei.(2014).A Subsystem Test Bed for Chinese Spectral Radioheliograph.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA,31. |
| MLA | Zhao, An,et al."A Subsystem Test Bed for Chinese Spectral Radioheliograph".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA 31(2014). |
入库方式： OAI收割
来源：国家天文台
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