When a transmitter sends a Wi-Fi signal and a receiver captures it after it passes through a person, the signal’s changes can ...

Per the American Heart Association, one person in the U.S., every 33 seconds, faces cardiovascular disease. Entering 2026, heart-rate monitoring is becoming less of an option and more of a necessity.

Abstract: Optical fiber sensors, known for their small size, lightweight, and resistance to electronic interference, are widely used in various applications, including medical vital signs monitoring ...

Abstract: This paper proposes a short-pulse laser driver using direct-drive depletion-mode gallium nitride high-electron-mobility-transistor (DDD GaN HEMT) device. Known for its low on-resistance, ...

Researchers at Bielefeld University have analyzed how reliably AI methods can detect pulse rates from simple video recordings. The technique, known as rPPG—remote photoplethysmography, an optical form ...