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

94-GHz propagation in the evaporation duct

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)
Anderson, K.D. ; US Naval Ocean Syst. Center, San Diego, CA, USA

One-way, low-altitude radio propagation measurements at 94 GHz and simultaneous surface meteorological measurements were made on a 40.6 km, over-horizon, over-water path along the southern California coast to assess the effects of the evaporation duct on signal propagation. More than 2000 h of RF and meteorological data were recorded in eight measurement periods from July 1986 to July 1987. On this path, the transmission loss in a standard atmosphere is nearly 280 dB; the median transmission loss measured is approximately 220 dB. This significant decrease in loss is due to the evaporation duct. A propagation model is used to predict transmission loss from observed surface meteorology; predictions derived from 10-min averages of wind speed, air temperatures, sea temperature, and humidity compare favorably to the measured values. On average, the modeling underestimates observations by only 10 dB. The propagation model is used to predict transmission loss from an independent climatology of evaporation duct heights. A comparison of the modeled distribution to the observed distribution is favorable. The accuracy of the propagation model provides a strong justification for using it to assess the propagation characteristics of millimeter-wave communication and radar systems operating in many, if not all, ocean regions

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:38 ,  Issue: 5 )

Date of Publication:

May 1990

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.