Title :
Performance characterization of GPS receivers under tree canopies
Author :
Koh, I.-S. ; Sarabandi, K.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
The availability of low-cost receivers has significantly broadened the use of the Global Positioning System (GPS). The GPS transmits a circularly polarized, L-band signal, which if line-of-sight (LOS) cannot be established is subject to significant polarization distortion and signal degradation. In this work, blockage by trees and their effect on path loss and polarization distortion of the GPS signal is analyzed.
Keywords :
Global Positioning System; UHF radio propagation; radio receivers; GPS receivers; Global Positioning System; UHF; blockage; circularly polarized L-band signal; line-of-sight; low-cost receiver; path loss; performance characterization; polarization distortion; signal degradation; tree canopies; Attenuation; Dielectrics; Distortion; Electromagnetic modeling; Electromagnetic scattering; Electromagnetic wave polarization; Fractals; Global Positioning System; L-band; Tree data structures;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2000. IEEE
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6369-8
DOI :
10.1109/APS.2000.873856
