GNSS Signal Quality in Forest Stands for Off-Road Vehicle Navigation

One of the basic possibilities orientation in forest stands is use global navigation satellite systems (GNSS). Today, these are used for pedestrian and also off-road vehicle navigation. This article presents results research aimed at measuring quality GNSS signal different types coniferous deciduous vegetation purpose optimizing vehicles. To determine structure (density) stand, tachymetry was chosen as reference method. The Trimble Geo 7X cm edition device with Tornado antenna devices using real time VRS (virtual station) method to measure quality. recorded numbers satellites (GPS, GLONASS, Galileo BeiDou) during driving a terrain two locations. Significant presented include deviations positions determined by from tachymetrically precisely measured marked routes along which moving. authors focused on accuracy determining position GNNS, most commonly measurement confirmed assumption that positioning better than (spruce) or mixed vegetation. purposefully military vehicles, but achieved can be applied forestry, rescue other