# Shift invariant sparse arrays and their optimal signal and noise subspaces

> Research article (Signal Processing, 2022) · cited 15× · AI/ML

**Wikidata**: [openalex:W4223454196](https://www.wikidata.org/wiki/openalex:W4223454196)  
**Source**: https://4ort.xyz/entity/shift-invariant-sparse-arrays-and-their-optimal-signal-and-noise-subspaces