# Air-Writing Character Recognition with Ultrasonic Transceivers

> Research article (Sensors, 2021) · cited 12× · AI/ML

**Wikidata**: [openalex:W3207958874](https://www.wikidata.org/wiki/openalex:W3207958874)  
**Source**: https://4ort.xyz/entity/air-writing-character-recognition-with-ultrasonic-transceivers