Noise problems should be viewed on the frequency axis, not the time axis.
Published2026.05.14 16:42Kim Kwi-soo, CTO of WaveInsense, presented at the e4ds webinar on the topic of "War Against Noise: Piercing Through SI/PI/EMI in the Frequency Domain," introducing an integrated analysis strategy for examining SI, PI, and EMI issues encountered by hardware engineers in the field from the frequency domain perspective. CTO Kim emphasized that noise issues in high-speed digital systems should not be addressed through temporary solutions by dividing them into SI, PI, and EMI categories, but rather should be viewed as a single connected physical phenomenon in the frequency domain to identify root causes.
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