# HPL calculation improvement for Chi-squared residual-based ARAIM

> Research article (GPS Solutions, 2022) · cited 21× · AI/ML

**Wikidata**: [openalex:W4210585365](https://www.wikidata.org/wiki/openalex:W4210585365)  
**Source**: https://4ort.xyz/entity/hpl-calculation-improvement-for-chi-squared-residual-based-araim