# Characterization of Quadratic Nonlinearity between Motion Artifact and Acceleration Data and its Application to Heartbeat Rate Estimation

> Research article (Sensors, 2017) · cited 11× · AI/ML

**Wikidata**: [openalex:W2748585423](https://www.wikidata.org/wiki/openalex:W2748585423)  
**Source**: https://4ort.xyz/entity/characterization-of-quadratic-nonlinearity-between-motion-artifact-and-acceleration-data-and-its-application-to-heartbea