# Heartbeat detector from ECG and PPG signals based on wavelet transform and upper envelopes

> Research article (Physical and Engineering Sciences in Medicine, 2023) · cited 16× · AI/ML

**Wikidata**: [openalex:W4323294892](https://www.wikidata.org/wiki/openalex:W4323294892)  
**Source**: https://4ort.xyz/entity/heartbeat-detector-from-ecg-and-ppg-signals-based-on-wavelet-transform-and-upper-envelopes