Title :
NLOS-multipath effects on Pseudo-Range estimation in urban canyons for GNSS applications
Author :
Ercek, Rudy ; De Doncker, Philippe ; Grenez, Francis
Author_Institution :
Service Ondes&Signaux, Univ. Libre de Bruxelles, Brussels
Abstract :
Pseudo-range (PR) errors due to NLOS-Multipath (non-line-of-sight-multipath) are studied in an urban canyon model. In order to determine the different reflected and diffracted rays which compose the NLOS-multipath, a dedicated ray tracing algorithm is applied. Two different methods are used in order to compute the PR error. The first one uses the error due to the maximum power ray and the second one uses an early minus late (E-L) receiver model. Simulations in different urban canyon configurations are carried out in order to obtain PR error distributions and associated probabilities due to NLOS-multipath rays above a given power threshold.
Keywords :
ray tracing; satellite navigation; GNSS; NLOS-multipath effects; early minus late receiver model; non-line-of-sight-multipath; pseudo-range estimation; ray tracing algorithm; Dielectric losses; Diffraction; Error analysis; Gaussian distribution; Global Positioning System; Rail transportation; Ray tracing; Reflection; Safety; Satellite navigation systems;
Conference_Titel :
Antennas and Propagation, 2006. EuCAP 2006. First European Conference on
Conference_Location :
Nice
Print_ISBN :
978-92-9092-937-6
DOI :
10.1109/EUCAP.2006.4584889
