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Alternative TitleAutomatic radio environment measurement system for QTT site
刘奇1,2; 王玥1; 刘晔1; 刘烽1; 陈卯蒸1; 王娜1; 曹亮1; 闫浩1
Source Publication中国科学:物理学 力学 天文学
Contribution Rank1
Abstract拟建设的新疆奇台110 m全可动射电望远镜(Qi Tai Radio Telescope, QTT)具有极高的系统灵敏度,良好的无线电环境是QTT科学产出的重要保证.为确保QTT建设阶段台址各类电磁干扰的有效监测,开发了自动化、高可靠性电波环境监测系统,该系统开发依据需求分析,采用高紧凑性微波器件集成方案;系统性能实测结果表明6 GHz以下频段系统增益大于40 dB,噪声系数小于2 dB; 7 GHz以下频段测量不确定度小于1.49 dB.同时,该系统考虑了户外防护、防雷及电磁兼容设计,具有较高的可靠性.另外,开发了自动化电波环境测量及监控软件和基于HDF5的数据处理及成图软件,实现自动化频谱监测及高效数据处理及分析.
Other AbstractThe proposed 110-m fully movable radio telescope (Qi Tai Radio Telescope, QTT) in Xinjiang province has extremely high system sensitivity. A good radio environment of QTT site is of importance for QTT scientific output. In order to ensure that all kinds of electromagnetic interference can be monitored effectively during QTT construction stage, an automatic and high reliability radio environment monitoring system was developed. According to the design requirements, the extremelty high compact microwave device integration scheme was employed for radio frequency receiver model to improve the system sensitivity. System performance measured results show that the system gain is more than 40 dB below 6 GHz and the system noise figure is less than 2 dB. The measurement uncertainty is less than 1.49 dB below 7 GHz based on the analysis. Meanwhile, outdoor protection, lightning and electromagnetic compatibility designs were taken into account for high reliability. In addition, we developed an automatic spectrum measurement and performance monitor software and a data processing and mapping software based on HDF5 format, realizing automatic spectrum monitoring and high effective data processing.
Correspondent Emailliuqi@xao.ac.cn
Keyword射电望远镜 无线电环境 电磁干扰 频谱监测
Indexed ByCSCD ; 中文核心期刊要目总览
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Document Type期刊论文
Corresponding Author刘奇
Affiliation1.中国科学院新疆天文台, 乌鲁木齐830011;
2.中国科学院大学, 北京100049
First Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Corresponding Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
刘奇,王玥,刘晔,等. QTT台址自动化电波环境监测系统[J]. 中国科学:物理学 力学 天文学,2019,49(9):099512.
APA 刘奇.,王玥.,刘晔.,刘烽.,陈卯蒸.,...&闫浩.(2019).QTT台址自动化电波环境监测系统.中国科学:物理学 力学 天文学,49(9),099512.
MLA 刘奇,et al."QTT台址自动化电波环境监测系统".中国科学:物理学 力学 天文学 49.9(2019):099512.
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