Noise Attenuation and Precision Measurement Methods for Sensors Exposed to Electromagnetic Interference 


Vol. 14,  No. 11, pp. 855-864, Nov.  2025
https://doi.org/10.3745/TKIPS.2025.14.11.855


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  Abstract

This study proposes both hardware and software approaches to address the noise issues in sensors exposed to external environments. From the H/W perspective, a 500 Hz sine wave signal was used to measure the current of a resistive sensor, and a three-stage band-pass filter was implemented to effectively attenuate low- and high-frequency noise. On the S/W side, a microprocessor was utilized to generate a 500 Hz signal, and a median algorithm was applied to eliminate noise. The H/W approach achieved a noise attenuation effect of 90–95%, while the S/W approach effectively removed the remaining residual noise. These results confirm that an improved monitoring system with enhanced accuracy and precision can be realized.

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[IEEE Style]

S. H. Jong and J. Choi, "Noise Attenuation and Precision Measurement Methods for Sensors Exposed to Electromagnetic Interference," The Transactions of the Korea Information Processing Society, vol. 14, no. 11, pp. 855-864, 2025. DOI: https://doi.org/10.3745/TKIPS.2025.14.11.855.

[ACM Style]

Shin Hyun Jong and Jin-Goo Choi. 2025. Noise Attenuation and Precision Measurement Methods for Sensors Exposed to Electromagnetic Interference. The Transactions of the Korea Information Processing Society, 14, 11, (2025), 855-864. DOI: https://doi.org/10.3745/TKIPS.2025.14.11.855.

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