# A dual-frequency online PMP method with phase-shifting parallel to moving direction of measured object

> Research article (Optics Communications, 2016) · cited 10× · AI/ML

**Wikidata**: [openalex:W2526159673](https://www.wikidata.org/wiki/openalex:W2526159673)  
**Source**: https://4ort.xyz/entity/a-dual-frequency-online-pmp-method-with-phase-shifting-parallel-to-moving-direction-of-measured-object