Title: GNSS-based precision approach local area augmentation system (LAAS) signal-in-space interface control document (ICD)
Description: "DO-246D includes the earlier document revisions and incorporates the standards for LAAS to support Cat. II and III precision approaches."--RTCA Web site.
Subjects: Global Positioning System, Aids to navigation, Landing aids (Aeronautics), Artificial satellites in aeronautics, Navigation (Aeronautics)