Antenna system characteristics and solar radio burst observations
文献类型：期刊论文
| 作者 | Li, Sha1,2,3 ; Yan, Yi-Hua1,2; Chen, Zhi-Jun1,2; Wang, Wei1,2; Liu, Dong-Hao1; Chen Zhijun; Wang Wei; Li Sha; Wang Wei; Yan Yihua
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2015-11-01 |
| 卷号 | 15期号:11页码:1917-1930 |
| 关键词 | techniques: image processing techniques: interferometric techniques: image processing |
| 英文摘要 | The Chinese Spectral Radio Heliograph (CSRH) is an advanced aperture synthesis solar radio heliograph, independently developed by National Astronomical Observatories, Chinese Academy of Sciences. It consists of 100 reflector antennas, which are grouped into two antenna arrays (CSRH-I and CSRH-II) for low and high frequency bands respectively. The frequency band of CSRH-I is 0.4-2 GHz and that for CSRH-II is 2-15 GHz. In the antenna and feed system, CSRH uses eleven feeds to receive signals coming from the Sun. The radiation pattern has a lower side lobe and the back lobe of the feed is well illuminated. The characteristics of gain G and antenna noise temperature T affect the quality of solar radio imaging. For CSRH, the measured G is larger than 60 dBi and T is less than 120 K. After CSRH-I was established, we successfully captured a solar radio burst between 1.2-1.6 GHz on 2010 November 12 using this instrument and this event was confirmed through observations with the Solar Broadband Radio Spectrometer at 2.84 GHz and the Geostationary Operational Environmental Satellite. In addition, an image obtained from CSRH-I clearly revealed the profile of the solar radio burst. The other observational work involved the imaging the Fengyun-2E geosynchronous satellite which is assumed to be a point source. Results indicate that the data processing method applied in this study for deleting errors in a noisy image could be used for processing images from other sources. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000365467400013 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5523]  |
| 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 100012, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Beijing 100012, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Sha,Yan, Yi-Hua,Chen, Zhi-Jun,et al. Antenna system characteristics and solar radio burst observations[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2015,15(11):1917-1930. |
| APA | Li, Sha.,Yan, Yi-Hua.,Chen, Zhi-Jun.,Wang, Wei.,Liu, Dong-Hao.,...&Wang Wei.(2015).Antenna system characteristics and solar radio burst observations.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,15(11),1917-1930. |
| MLA | Li, Sha,et al."Antenna system characteristics and solar radio burst observations".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 15.11(2015):1917-1930. |
入库方式： OAI收割
来源：国家天文台
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