# High accuracy contouring control of an excavator for surface flattening tasks based on extended state observer and task coordinate frame approach

> Research article (Automation in Construction, 2021) · cited 27× · AI/ML

**Wikidata**: [openalex:W3187874522](https://www.wikidata.org/wiki/openalex:W3187874522)  
**Source**: https://4ort.xyz/entity/high-accuracy-contouring-control-of-an-excavator-for-surface-flattening-tasks-based-on-extended-state-observer-and-task-