# A Survey on Human Behavior Recognition Using Smartphone-Based Ultrasonic Signal

> Research article (IEEE Access, 2019) · cited 18× · AI/ML

**Wikidata**: [openalex:W2964326329](https://www.wikidata.org/wiki/openalex:W2964326329)  
**Source**: https://4ort.xyz/entity/a-survey-on-human-behavior-recognition-using-smartphone-based-ultrasonic-signal