Title :
Elevation dependence of amplitude scintillations on low elevation Earth space paths
Author :
Vilar, E. ; Larsen, J.R.
Author_Institution :
Portsmouth Polytech., UK
Abstract :
The cumulative distribution, variance and spectral density of non-skewed amplitude scintillations measured at three sites during the four summers 82-85, and combining elevations ε=5°, 7.2°, 8.9°, 31° are analysed and compared. Theoretical expressions for the low elevation condition √λL (radius 1st Fresnel zone)>L0 (outer turbulence scale) are presented. Good agreement is found. Empirical expressions for the variance as a function of f(GHz) and ε are also presented
Keywords :
atmospheric electromagnetic wave propagation; radiowave propagation; satellite relay systems; scintillation; amplitude scintillations; cumulative distribution; elevation dependence; low elevation Earth space paths; radiowave propagation; spectral density; variance;
Conference_Titel :
Antennas and Propagation, 1989. ICAP 89., Sixth International Conference on (Conf. Publ. No.301)
Conference_Location :
Coventry
