Now showing items 1-2 of 2
The Validity of Using a Geographic Information System's Viewshed Function as a Predictor for the Reception of Line-of-Sight Radio Waves
(Virginia Tech, 2001-08-31)
A Geographic Information System (GIS) viewshed is the result of a function that determines, given a terrain model, which areas on a map can be seen from a given point(s), line or area. In the communications industry, this ...
RF and GIS: Field Strength Prediction for Frequencies between 900 MHz and 28 GHz
(Virginia Tech, 2001-08-15)
This thesis presents a model to predict signal strength for frequencies between 902 MHz and 28 GHz. The model approximates diffraction using the knife-edge concept and equations proposed by Lee (1985). LOS pathways are ...