Title :
An analytical model to predict the probability density function of elevation angles for LEO satellite systems
Author :
Li, Sheng-Yi ; Liu, C.-H.
Author_Institution :
Dept. of Electr. Eng., Nat. Central Univ., Taoyuan, Taiwan
fDate :
4/1/2002 12:00:00 AM
Abstract :
Based on Earth-satellite geometry, an analytical model is proposed to predict the probability density function (pdf) of elevation angles from an Earth station to a circular low-Earth-orbit (LEO) satellite constellation. Unlike currently available empirical models using a great deal of path data for model-fitting to obtain results applicable only to the specified systems (for example, the Iridium or Globalstar systems), the proposed model is fast, exact and provides greater flexibility for the user-specified satellite systems. The results may help to develop the LEO satellite communication channel models under the propagation environments characterized by various empirical elevation-angle-dependent channel models.
Keywords :
probability; satellite communication; Earth-satellite geometry; Globalstar systems; Iridium systems; LEO satellite systems; analytical model; elevation angles; elevation-angle-dependent channel models; low-earth-orbit satellite constellation; probability density function; propagation environments; satellite communication channel models; user-specified satellite systems; Analytical models; Density functional theory; Fading; Geometry; Low earth orbit satellites; Probability density function; Satellite communication; Satellite constellations; Satellite ground stations; Statistical distributions;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.996035
