# A Phase Calibration Method Based on Phase Gradient Autofocus for Airborne Holographic SAR Imaging

> Research article (IEEE Geoscience and Remote Sensing Letters, 2019) · cited 23× · AI/ML

**Wikidata**: [openalex:W2944794456](https://www.wikidata.org/wiki/openalex:W2944794456)  
**Source**: https://4ort.xyz/entity/a-phase-calibration-method-based-on-phase-gradient-autofocus-for-airborne-holographic-sar-imaging