%0 Journal Article %T Hybrid Multilateration and Triangulation %A Eric Widdison %A David G. Long %J Positioning %P 1-15 %@ 2150-8526 %D 2021 %I Scientific Research Publishing %R 10.4236/pos.2021.121001 %X Wide area multilateration algorithms suffer from stability issues related to the fact that the reference points are nearly coplanar. This paper presents a method to add elevation angle measurements to a multilateration problem and thereby reduce the error perpendicular to the plane where the measurements are taken. The resulting measurement error is significantly reduced for co- planar and nearly coplanar reference points. %K Localization %K Multilateration %K Linear Least Square %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=111598