# Position and orientation measurement system using spread spectrum sound for greenhouse robots

> Research article (Biosystems Engineering, 2020) · cited 16× · AI/ML

**Wikidata**: [openalex:W3049192235](https://www.wikidata.org/wiki/openalex:W3049192235)  
**Source**: https://4ort.xyz/entity/position-and-orientation-measurement-system-using-spread-spectrum-sound-for-greenhouse-robots