Title :
Spatial diversity improvement on 10 GHz fixed terrestrial path
Author :
Grabner, Martin ; Kvicera, Vaclav ; Pechac, Pavel ; Pecha, Lukas
Author_Institution :
Freq. Eng. Dept., Czech Metrol. Inst., Prague, Czech Republic
Abstract :
One-year spatial diversity characteristics on terrestrial path under influence of atmospheric multipath propagation are presented. Received signal level fluctuations are measured at different heights on the receiver site of the 50 km long terrestrial path operating in the 10 GHz band. Five receivers are installed on the mast in the heights of 51.5, 61.1, 90.0, 119.9 and 145.5 m above the ground. Multipath fading events due to atmospheric refraction have been observed and analysed. A spatial diversity receiver with two antennas in different heights is simulated by means of measured data. A diversity improvement factor is determined from the statistics of the received signals measured in different year seasons.
Keywords :
atmospheric electromagnetic wave propagation; diversity reception; electromagnetic wave refraction; microwave antennas; receiving antennas; antennas; atmospheric multipath propagation; distance 50 km; frequency 10 GHz; multipath fading; spatial diversity improvement; spatial diversity receiver; terrestrial path; Antenna measurements; Antennas and propagation; Atmospheric measurements; Electromagnetic propagation; Fading; Fluctuations; Microwave antennas; Poles and towers; Receiving antennas; TV receivers;
Conference_Titel :
Antennas & Propagation Conference, 2009. LAPC 2009. Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4244-2720-8
Electronic_ISBN :
978-1-4244-2721-5
DOI :
10.1109/LAPC.2009.5352386
