# Unbiased minimum-variance input and state estimation for systems with unknown inputs: A system reformation approach

> Research article (Automatica, 2017) · cited 59× · AI/ML

**Wikidata**: [openalex:W2728201304](https://www.wikidata.org/wiki/openalex:W2728201304)  
**Source**: https://4ort.xyz/entity/unbiased-minimum-variance-input-and-state-estimation-for-systems-with-unknown-inputs-a-system-reformation-approach