# Off-Grid DOA Estimation Aiding Virtual Extension of Coprime Arrays Exploiting Fourth Order Difference Co-Array With Interpolation

> Research article (IEEE Access, 2018) · cited 12× · AI/ML

**Wikidata**: [openalex:W2888363820](https://www.wikidata.org/wiki/openalex:W2888363820)  
**Source**: https://4ort.xyz/entity/off-grid-doa-estimation-aiding-virtual-extension-of-coprime-arrays-exploiting-fourth-order-difference-co-array-with-inte