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An Interference Margin-Driven Framework for EMC Evaluation of Coexisting Multi-Communication Systems in Vehicles

  • Zongqi Hu*
  • , Yaoyao Li
  • , Qiang Wang
  • , Haobo Geng
  • , Youwei Meng
  • , Laibing Feng
  • *Corresponding author for this work
  • Beihang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

To address electromagnetic compatibility (EMC) challenges arising from multi-device coexistence in complex radio-frequency (RF) systems, this paper proposes a systematic electromagnetic interference (EMI) prediction framework encompassing the entire transmitter-coupling path-receiver link. By constructing a multitransmitter spectral superposition model, spatial/conduction coupling path transmission model, and a receiver dynamic immunity model, and integrating quantitative interference margin (IM) evaluation with experimental validation, the framework enables EMC evaluation of the vehicle RF system. Experimental results demonstrate that the proposed method provides effective guidance for system-level interference suppression, with IM calculation errors constrained to within 2 dB.

Original languageEnglish
Title of host publication2025 International Applied Computational Electromagnetics Society Symposium, ACES-China 2025 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781733467711
DOIs
StatePublished - 2025
Event2025 International Applied Computational Electromagnetics Society Symposium, ACES-China 2025 - Huangshan, China
Duration: 8 Aug 202511 Aug 2025

Publication series

Name2025 International Applied Computational Electromagnetics Society Symposium, ACES-China 2025 - Proceedings

Conference

Conference2025 International Applied Computational Electromagnetics Society Symposium, ACES-China 2025
Country/TerritoryChina
CityHuangshan
Period8/08/2511/08/25

Keywords

  • EMC evaluation
  • IM
  • RF systems
  • dynamic immunity
  • spectral superposition

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