L-band RFI Measurement and Mitigation at the NSRT Site
文献类型：期刊论文
| 作者 | Liu Qi ; Liu Ye; Chen Maozheng; Wang Yue; Liu Feng; Yan Hao; Cao Liang; Su Xiaoming
|
| 刊名 | Acta Astronomica Sinica
 |
| 出版日期 | 2019 |
| 卷号 | 60期号:6 |
| 关键词 | radio environment RFI characteristic RFI mitigation shielding efficiency |
| ISSN号 | 0001-5245 |
| 英文摘要 | Radio environment degrades significantly at Nan Shan 26 m Radio Telescope (NSRT) base due to new and upgraded electrical devices on-site and more establishment of surrounding radio communication services. How do we mitigate them effectively? Firstly, a quasi-real time Radio Frequency Interference (RFI) measurement method is employed for RFI detection and spectral analysis based on the layout for potential on-site interference areas and off-site radio communication services. Our investigation at the frequency bands for pulsar observations (1380–1700 MHz) indicates that transient interferences pose the greatest impact on observations. Then we use a portable RFI measurement system for interferences hunting at the NSRT, and the typical characteristics of interferences are analyzed. Secondly, based on the RFI characteristics, main interference sources in the observation room are shielded with shielding cabinets. The results from our shielding efficiency (SE) measurement and evaluation show that these methods work effectively. Furthermore, we propose a Radio Quiet Zone (RQZ) and the regulations for NSRT to mitigate off-site RFIs. |
| 语种 | 英语 |
| CSCD记录号 | CSCD:6624049 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/6551]  |
| 专题 | 研究单元未命名 |
| 作者单位 | 中国科学院新疆天文台 |
| 推荐引用方式 GB/T 7714 | Liu Qi,Liu Ye,Chen Maozheng,et al. L-band RFI Measurement and Mitigation at the NSRT Site[J]. Acta Astronomica Sinica,2019,60(6). |
| APA | Liu Qi.,Liu Ye.,Chen Maozheng.,Wang Yue.,Liu Feng.,...&Su Xiaoming.(2019).L-band RFI Measurement and Mitigation at the NSRT Site.Acta Astronomica Sinica,60(6). |
| MLA | Liu Qi,et al."L-band RFI Measurement and Mitigation at the NSRT Site".Acta Astronomica Sinica 60.6(2019). |
入库方式： OAI收割
来源：新疆天文台
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