射电天文台址区域化干扰电平阈值量化及其应用
Quantization of regional interference level threshold for radio observatory sites and its application
查看参考文献18篇
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文摘
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为高效分析与评估台址周边辐射源对天文观测的影响,本文提出一种台址区域化干扰电平阈值量化方法.建立台址地形模型并进行网格划分,采用高效网格检索算法实现台址区域任意位置(网格)至望远镜的相对地形数据提取.在此基础上,选取适应于台址地形特征的电波传播算法,计算台址区域任意位置至望远镜的电波传播损耗,依据望远镜馈源口面干扰电平限值及旁瓣增益,实现台址区域干扰电平阈值量化,并应用于QTT台址,为射电望远镜电磁兼容性设计、台址无线电管理、干扰缓解策略提供重要技术支撑. |
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其他语种文摘
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To efficiently analyze and evaluate the effect of radiation sources around the station site on astronomical observations, a method to quantify the interference level threshold of station site regionalization is proposed. A terrain model of the station site is established and meshed, and an efficient grid retrieval algorithm is used to extract relative terrain data from any position (grid) within the station site area. Based on this, a radio propagation algorithm adapted to the topographic characteristics of the station site is selected to calculate the radio propagation loss from any location of the station site to the telescope. Considering the interference level limit and side lobe gain of the telescope feed interface, a threshold quantization of the interference level in the station site area is implemented. This approach is then applied to the QTT (QiTai Radio Telescope) station site, providing important technical support for electromagnetic compatibility measurement of the radio telescope, radio management of the station site, and interference mitigation strategy. |
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来源
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中国科学. 物理学
, 力学, 天文学,2024,54(1):219514 【核心库】
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DOI
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10.1360/SSPMA-2023-0230
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关键词
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射电天文
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区域网格
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干扰电平阈值
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地址
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1.
中国科学院新疆天文台, 乌鲁木齐, 830011
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新疆微波技术重点实验室, 新疆微波技术重点实验室, 乌鲁木齐, 830011
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1674-7275 |
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学科
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天文学 |
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基金
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国家重点研发计划
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新疆维吾尔自治区自然科学基金
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中国科学院科研仪器设备研制项目
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文献收藏号
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CSCD:7658839
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参考文献 共
18
共1页
|
|
1.
Beaudet C. Radio frequency interference management efforts at the National Radio Astronomy Observatory Green Bank site.
2013 US National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM),2013
|
CSCD被引
1
次
|
|
|
|
|
2.
李建斌. 射电天文站电磁环境测量方法及分析.
电波科学学报,2009,24:523-528
|
CSCD被引
14
次
|
|
|
|
|
3.
袁力. 现场环境下设备区域电磁干扰检测与识别方法.
电波科学学报,2017,32:650-656
|
CSCD被引
11
次
|
|
|
|
|
4.
Peng B. RFI test observations at a Candidate Ska Site in China.
Exp Astron,2004,17:423-430
|
CSCD被引
8
次
|
|
|
|
|
5.
刘奇. 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,2019,49:099512
|
CSCD被引
5
次
|
|
|
|
|
6.
Recommendation Itu-R R A.
769-2. Protection criteria used for radio astronomical measurement,2003
|
CSCD被引
2
次
|
|
|
|
|
7.
刘奇. 射电天文台站准实时电波环境测量方法.
电波科学学报,2017,32:718-724
|
CSCD被引
16
次
|
|
|
|
|
8.
REPORT ITU-R RA.2126.
Techniques for mitigation of radio frequency interference in radio astronomy,2007
|
CSCD被引
1
次
|
|
|
|
|
9.
黄仕杰. FAST访客电子设备电磁干扰分析.
天文研究与技术,2017,14:268-274
|
CSCD被引
8
次
|
|
|
|
|
10.
刘晔. 大口径射电望远镜台址电磁干扰预测方法.
中国科学:物理学力学天文学,2019,49:099514
|
CSCD被引
4
次
|
|
|
|
|
11.
Square Kilometer Array Expert Panel on Radio Frequency Interference.
Report on the strengths and weaknesses of the current radio frequency interference environment as measured at the SKA candidate sites. Technical Report,2011
|
CSCD被引
1
次
|
|
|
|
|
12.
屈利平. 微波频段下对流层散射通信系统工作频率研究.
通信技术,2020,53:2373-2380
|
CSCD被引
1
次
|
|
|
|
|
13.
Wang N. The Qitai radio telescope.
Sci China-Phys Mech Astron,2023,66:289512
|
CSCD被引
20
次
|
|
|
|
|
14.
Recommendation Itu-R P.
452-2015. Prediction procedure for the evaluation of interference between stations on the surface of the Earth at frequencies above about 0.1 GHz,2015
|
CSCD被引
1
次
|
|
|
|
|
15.
Deygout J. Multiple knife-edge diffraction of microwaves.
IEEE Trans Antennas Propagat,1966,14:480-489
|
CSCD被引
2
次
|
|
|
|
|
16.
Deygout J. Correction factor for multiple knife-edge diffraction.
IEEE Trans Antennas Propagat,1991,39:1256-1258
|
CSCD被引
1
次
|
|
|
|
|
17.
Zhao Q. Research on signal coverge of localizer based on deygout algorithm.
Proceedings of 2021 IEEE 3rd International Conference on Civil Aviation Safety and Information Technology (ICCASIT),2021:118-122
|
CSCD被引
1
次
|
|
|
|
|
18.
金明岩. 无线网络规划中绕射损耗算法的分析.
现代电信科技,2012,42:32-37
|
CSCD被引
1
次
|
|
|
|
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