A Novel Approach for On-Site Measurement of Radiated Emission of EMU

LIU Dong; WEN Yinghong; XIAO Jianjun

doi:10.1049/cje.2020.03.013

Volume 29 Issue 3

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LIU Dong, WEN Yinghong, XIAO Jianjun, “A Novel Approach for On-Site Measurement of Radiated Emission of EMU,” Chinese Journal of Electronics, vol. 29, no. 3, pp. 574-579, 2020, doi: 10.1049/cje.2020.03.013

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LIU Dong, WEN Yinghong, XIAO Jianjun, “A Novel Approach for On-Site Measurement of Radiated Emission of EMU,” Chinese Journal of Electronics, vol. 29, no. 3, pp. 574-579, 2020, doi: 10.1049/cje.2020.03.013

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A Novel Approach for On-Site Measurement of Radiated Emission of EMU

doi: 10.1049/cje.2020.03.013

LIU Dong^1,2,
WEN Yinghong^{1,2
,},
XIAO Jianjun^1,2

1.
Institute of Electromagnetic Compatibility, Beijing Jiaotong University, Beijing 100044, China;
2.
Beijing Engineering Research Center of EMC and GNSS Technology for Rail Transportation, Beijing 100044, China

Funds: This work is supported by the National Natural Science Foundation of China (No.U1734203), the National Natural Science Foundation of China (No.61631013), and the Beijing Municipal Science & Technology Commission (No.Z181100001018032).

More Information

Corresponding author: WEN Yinghong (corresponding author) received Ph.D. in 1998 from Beijing Jiaotong University. Now she is professor and doctoral supervisor in Beijing Jiaotong University. Her research interest focuses on electromagnetic compatibility technology. (E-mail:yhwen@bjtu.edu.cn)
Received Date: 2019-01-16
Rev Recd Date: 2019-11-22
Publish Date: 2020-05-10

Abstract

Abstract

The main problem in on-site radiated emission test of EMU (Electric multiple unit) is the excess ambient electromagnetic noise due to the complex electromagnetic environment. In order to solve this problem, this paper proposed a novel approach for on-site radiated emission measurement test. A joint algorithm comprise blind source separation and adaptive signal processing is used to suppress the ambient electromagnetic noise. The normalized estimation of ambient electromagnetic noise is obtained by blind source separation algorithm, then the normalized estimation of ambient electromagnetic noise is used as the reference signal to adaptively cancel the ambient noise in the mixed electromagnetic noise, so the estimation of radiated noise of EMU is obtained. The simulation and experiment results showed that the proposed method can effectively suppress the ambient electromagnetic noise, thus realize the accurate measurement of the radiated emission of the EMU.
- Ambient electromagnetic noise,
- On-site radiated emission test,
- Electric multiple unit

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References

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