采用数学建模的系统级电磁辐射合规性 |
本建议书为电信运营商证明电信系统产生的辐射排放的合规性提供支持。电信运营商通常要用多种设备来建设系统,每项设备的设计上要满足EMC要求,包括辐射排放。这意味着系统通常会在一些常见的频率上包含一些排放源(即单独的设备项目)。如果系统包含许多相同的设备项目或许多不同的设备项目,情况确实如此。对于此类系统,这些多个排放叠加可能产生大于超出系统排放限制的系统排放水平。这是电信运营商希望证明其系统符合辐射排放的基本考虑。本建议书介绍了一种系统辐射排放合规性的统计方法。通过对运营商不掌握的基本变量的处理应用统计方法,一个方法是以概率和累积概率分布的形式对系统排放水平进行统计描述。这些分布使得系统排放水平的合规性,相对于某个限制,通过统计置信度来表达(而不是一个简单的“通过”或“未通过”的声明)。建议使用80%的置信度来表达合规性,以与CISPR22中系列生产设备所采用的方法保持一致。所介绍的方法也可以供其他组织使用,这些组织建设或运营由许多数字电子设备整合而成的其他系统,而每个设备要符合各自的排放限制。 |
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Ed. |
ITU-T Recommendation |
Status |
Summary |
Table of Contents |
Download |
1
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K.62 (02/2004)
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In force
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here
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here
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here
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ITU-T Supplement
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Title
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Status
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Summary
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Table of contents
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Download
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K Suppl. 3 (10/2015)
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ITU-T K.20, K.21, K.45, K.82 – Additional criteria to protect telecommunication cabling during a power cross event
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In force
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here
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here
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here
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K Suppl. 8 (11/2017)
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Resistibility analysis of 5G systems
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In force
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here
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here
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here
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K Suppl. 9 (05/2019)
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5G technology and human exposure to radiofrequency electromagnetic fields
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In force
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here
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here
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here
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K Suppl. 10 (11/2017)
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Analysis of electromagnetic compatibility aspects and definition of requirements for 5G mobile systems
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In force
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here
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here
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here
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K Suppl. 13 (12/2021)
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Radiofrequency electromagnetic field (RF-EMF) exposure levels from mobile and portable devices during different conditions of use
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In force
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here
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here
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here
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K Suppl. 14 (09/2019)
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The impact of RF-EMF exposure limits stricter than the ICNIRP or IEEE guidelines on 4G and 5G mobile network deployment
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In force
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here
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here
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here
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K Suppl. 16 (10/2022)
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Electromagnetic field compliance assessments for 5G wireless networks
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In force
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here
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here
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here
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K Suppl. 19 (09/2019)
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Electromagnetic field (EMF) strength inside underground railway trains
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In force
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here
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here
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here
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K Suppl. 29 (07/2022)
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Electromagnetic field strength inside and outside of electric vehicles using wireless power transfer technology
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In force
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here
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here
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here
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Title |
Approved on |
Download |
Mitigation measures for telecommunication installations – Chapter 10
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2006
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here
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Mitigation measures for telecommunication installations
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2004
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here
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Earthing and bonding
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2003
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here
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Guide to the use of ITU-T Publications produced by Study Group 5 aimed at achieving Electromagnetic Compatibility and Safety
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2002
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here
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Earthing of telecommunication installations
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1976
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here
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