Impact of noise in the characterization of magnetic field radiated emissions

被引：0
|
作者：
Bellan, D [1 ]
Pignari, SA [1 ]
Betti, P [1 ]
Carillo, D [1 ]
Gaggelli, A [1 ]
机构：
[1] Politecn Milan, Dipartimento Elettrotecn, I-20133 Milan, Italy
来源：
2003 IEEE SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY, SYMPOSIUM RECORD, VOLS 1 AND 2 | 2003年
关键词：
noise statistics; magnetic field measurement; human exposure to electromagnetic fields; ICNIRP guidelines; transportation systems;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This article reports the statistical analysis of an experimental procedure to monitor magnetic flux density (MFD) emissions on board of rolling stock. Measurements are operated in the time-domain and are aimed to track possibly modulated sinusoidal components of MFD emissions. The impact of additive internal noise (generated by the measurement equipment) as well as external noise (due to non-sinusoidal sources) is investigated. Since the final goal is safety assessment, the transformations experienced by the experimental data are analyzed and the statistics of a safety parameter (reported in the ICNIRP guidelines) is derived in closed form. Specifically, the expected value and variance of such a parameter are obtained analytically. Results' validity is checked on test signals with known statistical properties, by a repeated-run analysis.
引用
收藏
页码：887 / 891
页数：5
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