# Spatial Filtering Based on Differential Spectrum for Improving ML DOA Estimation Performance

> Research article (IEEE Signal Processing Letters, 2016) · cited 14× · AI/ML

**Wikidata**: [openalex:W2516551528](https://www.wikidata.org/wiki/openalex:W2516551528)  
**Source**: https://4ort.xyz/entity/spatial-filtering-based-on-differential-spectrum-for-improving-ml-doa-estimation-performance