Digital Moving Average Filter for De-noising the Ultrasonic Signals Utilized in COVID-19 PreventionApplications


Authors : R. Mathushaharan

Volume/Issue : Volume 7 - 2022, Issue 9 - September

Google Scholar : https://bit.ly/3IIfn9N

Scribd : https://bit.ly/3T5Jm0L

DOI : https://doi.org/10.5281/zenodo.7171470

This research paper presents a digital moving av- erage filter for noise removal of the ultrasonic signal which plays a major role in COVID-19 prevention applications such as social distance detection systems and sensor-based handwashing systems. The goal of the abovementioned filter is to improve the accuracy of distance measurements. The filter design procedure was carried out mainly using software called Matrix Labora-tory with the assistance of hardware components such as the Arduino development board, ultrasonic sensor, and breadboard. Furthermore, a comprehensive analysis was conducted between the original signal and the filtered signal to verify the effectivenessof the filter.

Keywords : Arduino development board, Digital Moving Average Filter, Matrix Laboratory, Noise removal, Ultrasonic sensor

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