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Analysis of the radio environment at prospective radio astronomy sites using Monte Carlo methods

文献类型：期刊论文

作者Zhou, Junxian1; Dong L(董亮)2
刊名天文技术与仪器(英文)/Astronomical Techniques and Instruments
出版日期2024-11
卷号1期号:06页码:325-334
ISSN号1672-7975
DOI10.61977/ati2024054
产权排序第2完成单位
英文摘要Radio astronomy necessitates radio frequency bands that are both stable and free from interference at observatory locations. To comprehensively evaluate the radio environment at radio observatories, we employ Monte Carlo methods to assess the quality of observational data and predict potential interference. With an extensive dataset,we used an algorithm to find the interference threshold within the L-band, automatically identifying disruptive signals.Monte Carlo simulations were conducted to estimate whether these interference signals surpass a predetermined threshold of the total observation period, facilitating a detailed analysis of the interference profile. A Monte Carlo analysis was used on 83 hours of continuous monitoring data using a wireless environment testing system, to forecast the proportion of time during which interference signals would surpass established harmful thresholds. Our findings indicate that, within the L-band spectrum at Fenghuang Hill, Kunming City, Yunnan Province, the incidence of interference within the frequency ranges of 1 330–1 440 MHz, 1 610–1 613 MHz, and 1 660–1 670 MHz is acceptably low, with respective confidence levels of 96.9%, 97.4%, and 97.4% that the proportion of time these interference signals occupy does not exceed 5% of the total observational time, as stipulated by the International Telecommunication Union. Conversely, the confidence level for the 1 718–1 722 MHz band not exceeding 5% of the total observational time is significantly lower at 88.5%. This study offers a valuable tool for assessing the radio environment in radio astronomy research and provides a foundational basis for the scientific management and safeguarding of radio frequency bands. 
学科主题天文学 ; 射电与天文学
分类号P161
URL标识查看原文
资助项目Science and Technology Innovation Center for South Asia and Southeast Asia-Yunnan Province International Joint Innovation Platform: “Yunnan Province China-Malaysia HF-VHF Advanced Radio Astronomy Technology International Joint Laboratory” [202303AP140003]; The National Natural Science Foundation of China Astronomical Joint Fund Cultivation Project [U203 1133]; The SKA Special Project of the Ministry of Science and Technology [2020SKA0110202]; The International Partnership Program of Bureau of International Cooperation, Chinese Academy of Sciences: 'Belt and Road' cooperation [114A11KYSB 20200001]; The Kunming International (International) Cooperation Base project: “Yunnan Astronomical Observatory-University of Malaya Advanced Radio Astronomy Technology, Chinese Academy of Sciences” [GHJD2021022]; The key special project of the Ministry of Science and Technology under the “Space Remote Sensing and Radio Astronomical Observation” of the Ministry of Science and Technology [2022YFE0140000]; The High-precision calibration method of the SKA special low-frequency radio interference array of the Ministry of Science and Technology [2020SKA011 0300]
语种英语
资助机构Science and Technology Innovation Center for South Asia and Southeast Asia-Yunnan Province International Joint Innovation Platform: “Yunnan Province China-Malaysia HF-VHF Advanced Radio Astronomy Technology International Joint Laboratory” [202303AP140003] ; The National Natural Science Foundation of China Astronomical Joint Fund Cultivation Project [U203 1133] ; The SKA Special Project of the Ministry of Science and Technology [2020SKA0110202] ; The International Partnership Program of Bureau of International Cooperation, Chinese Academy of Sciences: 'Belt and Road' cooperation [114A11KYSB 20200001] ; The Kunming International (International) Cooperation Base project: “Yunnan Astronomical Observatory-University of Malaya Advanced Radio Astronomy Technology, Chinese Academy of Sciences” [GHJD2021022] ; The key special project of the Ministry of Science and Technology under the “Space Remote Sensing and Radio Astronomical Observation” of the Ministry of Science and Technology [2022YFE0140000] ; The High-precision calibration method of the SKA special low-frequency radio interference array of the Ministry of Science and Technology [2020SKA011 0300]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/27914]  
专题云南天文台_射电天文研究组
作者单位1.School of Information Engineering,Southwest University of Science and Technology;
2.Yunnan Province China-Malaysia HF-VHF Advance Radio Astronomy Technology International Joint Laboratory,Yunnan Observatories,Chinese Academy of Sciences
推荐引用方式
GB/T 7714		 Zhou, Junxian,Dong L. Analysis of the radio environment at prospective radio astronomy sites using Monte Carlo methods[J]. 天文技术与仪器(英文)/Astronomical Techniques and Instruments,2024,1(06):325-334.
APA Zhou, Junxian,&董亮.(2024).Analysis of the radio environment at prospective radio astronomy sites using Monte Carlo methods.天文技术与仪器(英文)/Astronomical Techniques and Instruments,1(06),325-334.
MLA Zhou, Junxian,et al."Analysis of the radio environment at prospective radio astronomy sites using Monte Carlo methods".天文技术与仪器(英文)/Astronomical Techniques and Instruments 1.06(2024):325-334.

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来源：云南天文台

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