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

Random processes in wave propagation

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)
Ament, W. ; Naval Research Laboratory, San Diego, CA, USA

Part I. Transmission: For wave propagation through a randomly scattering medium, theory predicts statistical averages of certain measurements. Familiar theories are discussed in terms of the measurements to which they relate. For instance, the "extinction cross section" of a large opaque object is simply shown to be twice its geometric cross section; the relevant measurement is not one of transmitted power flux, but an interferometric measurement of the average phase and amplitude of a coherent wave passing through a cloud of such objects. A similar interferometric measurement relates to the attenuation currently calculated from the Booker-Gordon scattering formula. This is shown by two new derivations of the propagation constant of a "blobby" medium. The simpler measurement of average transmitted power-flux requires a complicated theory of photon transport. Theory and measurements relating to angle-of-arrival are intermediate between those relating to power-flux and propagation constant. Part II. Reflection: Similar considerations hold for reflection from a rough surface. Specular reflection is an interferometric concept. Lambert's law and backscatter are power-flux concepts. A theory of specular reflection is logically prior to a theory of backscatter. The requirements for such theories are discussed through simple examples.

Published in:

Antennas and Propagation, Transactions of the IRE Professional Group on  (Volume:PGAP-3 )

Date of Publication:

Aug 1952

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.