Time-frequency processing adapted for the different electromagnetic compatibility issues in the railway domain

Kousri, Mohamed Raouf; Deniau, Virginie; Heddebaut, Marc; Baranowski, Sylvie; Rioult, Jean

doi:10.1109/isemc.2015.7256353

Cited by 4 publications

(4 citation statements)

References 6 publications

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“…Once the measurement data of typical EMI and IEMI sources are available, it is necessary to develop a mathematical model to relate the EM interference to the radio immunity of the communications network. Current modeling effort is focused on the empirical distributions using real scenario measurements, or in an emulation platform such as the zero-on-site-testing approach [86], [119], [120].…”

Section: A Emi and Iemi Modeling And Analysismentioning

confidence: 99%

EMI and IEMI Impacts on the Radio Communication Network of Electrified Railway Systems: A Critical Review

Fan

Zhang

2023

IEEE Trans. Veh. Technol.

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The electrified railway system has been rapidly rolled out in many countries and regions in the past decades, along with the transportation decarbonization agenda. The latest development in power electronics and electrical railway systems has increased the risks of electromagnetic interference (EMI) and intentional EMI (IEMI) emissions, introducing new challenges to the railway radio communications network. It is vital to have a robust and reliable railway communication network that can be resistant and immune to these interferences for the safe and efficient operation of modern railway systems. Yet, the source and new features of EMI and IEMI emerging along with the latest technological development have not been thoroughly investigated and understood. This review paper aims to fill the research gap. First, railway communications systems are introduced. The EMI and IEMI are discussed at the whole system level, and the corresponding impacts on the signaling and communication systems are reviewed comprehensively. Current electromagnetic compatibility (EMC) methods are surveyed, and challenges of tackling the impacts of EMI and IEMI on the signaling and communication systems are discussed. Finally, future research directions are outlined.

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Section: A Emi and Iemi Modeling And Analysismentioning

confidence: 99%

EMI and IEMI Impacts on the Radio Communication Network of Electrified Railway Systems: A Critical Review

Fan

Zhang

2023

IEEE Trans. Veh. Technol.

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“…In a previous work [13], a flexible time-frequency analysis tool adapted to the analysis of different electromagnetic compatibility (EMC) issues in the railway domain has been presented. Indeed, the time-frequency analysis allows extracting simultaneously the temporal and spectral information contained in the analyzed signals [14].…”

Section: A Analysis Tool Presentationmentioning

confidence: 99%

“…A multi-convolution process is realized with this rectangular window in order to improve the frequency resolution. The number of convolutions is limited to 3 successive convolutions to permit conserving a sufficient time resolution [13]. Figure 1 shows the two main steps of this analysis method i.e., transforming in the frequency domain, and convolution.…”

Section: A Analysis Tool Presentationmentioning

confidence: 99%

Evaluation of the Impact of Transient Disturbances on Railway Signaling Systems Using an Adapted Time-Frequency Analysis Method

Kousri¹,

Deniau²,

Heddebaut³

et al. 2017

International Journal of Electronics and Telecommunications

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As many other industrial environments, the railway electromagnetic environment is characterized by a large number of electromagnetic signals and disturbances. Among these, transient signals, with high energy level and wide frequency spectrum, represent an important threat to different signaling subsystems. In this paper, a new methodology dedicated to the detection and the characterization of the transient disturbances is presented. Based on a flexible and adjustable time-frequency analysis, this methodology is used to evaluate the impact of transient disturbances on a ground-to-train radio communication. A test bench was developed in order to validate the results of this evaluation.

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“…Conducted electromagnetic interference (EMI) measurements have been conventionally performed using selective EMI receivers, scanning through the frequency band using a small bandpass filter [5] focus on two methods: FFT [9] and Wavelet Transfonnation [10]. However, FFT is the most popular methods as many researchers have used it [11] [12][13] although it was claimed that wavelet is more powerful than FFT on time-frequency processing [14]. To measure the common mode (CM) and differential mode (DM) current and voltage breakout boxes have been developed [15].…”

Section: Introductionmentioning

confidence: 99%

Time-domain measurement technique to analyze cyclic short-time interference in power supply networks

Setiawan

Keyer

Azpúrua

et al. 2016

2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)

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Conducted interference caused by equipment connected to power supply networks, and the interference in these networks, is conventionally measured using (slow) scanning tuned electromagnetic interference (EM!) receivers. A voltage sensor which separates common mode and differential mode in a three phase setup combined with a 8-channel digital oscilloscope allows measuring voltage and current via many samples in the three phases plus neutral. Using fast fourier transform for the data processing the conventional amplitude-as-function-of-frequency plots, similar to what would be obtained using conventional EM! receivers, can be generated. But with the presented measurement technique it is also possible to present time-frequency plots in a waterfall diagram. The tim e -d 0 m a i n measurement te c h n i que show s that the conducted noise is cyclic short-time interference.

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Time-frequency processing adapted for the different electromagnetic compatibility issues in the railway domain

Cited by 4 publications

References 6 publications

EMI and IEMI Impacts on the Radio Communication Network of Electrified Railway Systems: A Critical Review

EMI and IEMI Impacts on the Radio Communication Network of Electrified Railway Systems: A Critical Review

Evaluation of the Impact of Transient Disturbances on Railway Signaling Systems Using an Adapted Time-Frequency Analysis Method

Time-domain measurement technique to analyze cyclic short-time interference in power supply networks

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