Multiscale Terrain Analysis for Spatial Definition of GNSS Receiver's Elevation Masks.


  • Jean A. Doumit *Faculty of Letters and Human Sciences- Branch 2 Geospatial Lab, Lebanese University


map,angle,satellite, generation


Positioning information by Global Navigation Satellite System (GNSS) is used in various fields, especially in Earth sciences and engineering, GNSS positioning accuracy depends on the measurementenvironment. The dilution of precision value increases with increases in the elevation mask angle as the satellite- receiver geometry varies over time due to the relative motion of orbiting satellites. GNSS user wonders which elevation mask angle to use and in which location.Digital Terrain Analysis at both country and city scales could be the answer to this question. In this paper, the Sky View Factor (SVF) based on multiscale Digital Elevation Models is applied in purpose to estimate the optimal elevation angle with relation to terrain topography. Terrain analysis resulted fromthe SVF map at the country scale allowed the generation of the optimal GNSS permanent station locations map, and at the city scale, the generation of the optimal elevation angle values map related to the place and space.

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How to Cite

Jean A. Doumit. (2021). Multiscale Terrain Analysis for Spatial Definition of GNSS Receiver’s Elevation Masks. BRICS JOURNAL OF EDUCATIONAL RESEARCH, 11(3), 110-116. Retrieved from