城际轨道交通对机场导航设施电磁影响评价

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摘要研究目的:建在机场附近的城际轨道交通，为实现良好衔接，城际轨道交通与机场导航设施间的电磁兼容问题越来越受到关注。本文利用近期国内多条城市轨道交通系统电磁辐射测试成果，预测分析宁高城际直流轨道交通对南京禄口机场与城轨接近的部分导航设施的电磁影响程度，为城际轨道交通选线的合理性和可行性提供技术依据。

研究结论:(1)宁高城际直流轨道上运行的列车，在隧道内产生的电磁辐射受到屏蔽后不会再对外界机载或地面导航设备构成威胁;(2)列车在隧道口产生的电磁辐射经过横向衰减，与雷达及中指点信标台设备I_作频段对应的干扰分量会较大幅度衰减，特别是对于空管二次雷达，其干扰分量将低于环境背景值;(3)该研究结论可为城际轨道交通选线提供技术依据。

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	阎顺

关键词 ：城际轨道交通, 导航设施, 电磁环境

Abstract：Research purposes:Intercity rail transit is a new form of rail transit. In order to facilitate the transfer， electromagnetic compatibility between intercity rail transit and the airport navigation facilities is increasedly concerned. By using electromagnetic radiation testing results of a number of recent domestic urban rail transit systems，this paper predictively analyzed the electromagnetic impact of Nanjing一Gaochun intercity DC rail transit on some airport navigation facilities of Nanjing Lukou，and provided the technical basis for the rationality and feasibility of intercity rail transit line selection.

Research conclusions:(1)The electromagnetic radiation generated by train running on Nanjing一Gaochun intercity DC rail transit while it is in tunnel is shielded and will no longer pose a threat to the navigation facilities on board or on the ground.(2)After the lateral attenuation，the component corresponding radar and pointing beacon'.s operating frequency of electromagnetic radiation generated by the train at the tunnel portal decreases sharply. Especially to the ATC secondary radar, the interference component is lower than background values.(3)The conclusions above provide the technical basis for intercity rail transit line selection.

Key words： intercity rail transit navigation facilities;electromagnetic environment

作者简介: 阎顺，1985年出生，男，工程师

引用本文:

阎顺. 城际轨道交通对机场导航设施电磁影响评价[J]. 铁道工程学报, 2015, 32(6): 102-105.
YAN Shun. Assessment of Electromagnetic Impact on Airport Navigation Facilities of Intercity Rail Transit. 铁道工程学报, 2015, 32(6): 102-105.

链接本文:

https://tdgcxb.crec.cn/CN/ 或 https://tdgcxb.crec.cn/CN/Y2015/V32/I6/102

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