The DME/DME analysis includes line-of-sight (LOS) analysis, the coverage both en-route and in terminal areas, and optimal transmitter placement based on polygonal computational geometry. The aim is to assess the feasibility of VHF/UHF terrestrial navigation in GNSS-denied environments.
To determine which airports are
DME/DME-approach-enabled, we
- Check LOS (terrain included) in AAR (airport approach
region). - Check that along-track (ATK) and cross-track (CTK)
variances are within bounds everywhere along the
discretized approach path, for all DME pairs.
