In this article, the effectiveness and the limitations of spread-spectrum (SS) modulation techniques employed in switching-mode power converters and in digital systems to mitigate interference with communication equipment are analyzed and discussed under the EMC standard perspective and under an information theoretical perspective, with reference to different real-world scenarios. Substantial difference between potential EMI issues in traditional analog radio/TV broadcasting, digital data lines, and digital links featuring advanced channel coding techniques, e.g. in emerging power line communication (PLC) systems, are highlighted. Practical recommendations on the adoption of SS modulations along with a general reflection on the evolution of EMC requirements are finally given.
Interference of Periodic and Spread-Spectrum-Modulated Waveforms with Analog and Digital Communications / Crovetti, Paolo S.; Musolino, Francesco. - In: IEEE ELECTROMAGNETIC COMPATIBILITY MAGAZINE. - ISSN 2162-2264. - STAMPA. - 11:2(2022), pp. 73-83. [10.1109/MEMC.2022.9873819]
Interference of Periodic and Spread-Spectrum-Modulated Waveforms with Analog and Digital Communications
Crovetti, Paolo S.;Musolino, Francesco
2022
Abstract
In this article, the effectiveness and the limitations of spread-spectrum (SS) modulation techniques employed in switching-mode power converters and in digital systems to mitigate interference with communication equipment are analyzed and discussed under the EMC standard perspective and under an information theoretical perspective, with reference to different real-world scenarios. Substantial difference between potential EMI issues in traditional analog radio/TV broadcasting, digital data lines, and digital links featuring advanced channel coding techniques, e.g. in emerging power line communication (PLC) systems, are highlighted. Practical recommendations on the adoption of SS modulations along with a general reflection on the evolution of EMC requirements are finally given.File | Dimensione | Formato | |
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https://hdl.handle.net/11583/2971978