Cart (Loading....) | Create Account
Close category search window
 

Experimental rain attenuation statistics estimated from radar measurements useful to design satellite communication systems for mobile terminals

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Matricciani, E. ; CNR, Politecnico di Milano, Italy

Based on experimental data, we have reported a reliable method to scale the cumulative time TF,T(A) that rain attenuation A (dB) is exceeded in a fixed satellite system to the time TM,T(A) that it is exceeded in a satellite system for mobile terminals. Zigzag routes and ring-roads simulated city patterns; straight routes simulated freeways. In all cases, TM,T(A) can be expressed as TM,T(A)=ξTF,T (A) with a probability scaling factor ξ independent of A. The simulations have been made at 19.77 GHz with satellite elevation angle θ of 30.6°, 45°, 60°, 80°, and 90°. For the horizontal structure of rain, we have used a very large number of rain-rate maps of rain storms randomly observed in 1989-1992 by a meteorological radar placed at Spine d'Adda (northern Italy). The vehicle speed was modeled as a log-normal random variable. We found: (a) in zigzag routes, TM,T(A)<TF,T(A), i.e., ξ<1, with results depending on vehicle speed modeling and starting conditions; (b) in a ring-road, there is no difference between fixed and mobile systems (ξ=1); and (c) in straight freeways, TM,T(A)≪TF,T (A)(ξ≪1); TM,T(A) can change significantly in different straight lines and in opposite directions (anisotropy and asymmetry) for medium-large attenuation. When compared to zigzag routes or ring-roads, the performance in straight freeways is the most optimistic. For θ>30.6° and for the same pattern, ξ is fairly independent of θ. Since the radar rain maps are a reliable estimate of the horizontal structure of rain, the findings, which can be considered frequency-independent, stand as a very good prediction of the results obtainable by experiments

Published in:

Vehicular Technology, IEEE Transactions on  (Volume:49 ,  Issue: 5 )

Date of Publication:

Sep 2000

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.