Theoretical Noise and Propagation Models for Through-the-earth Communication

Theoretical Noise and Propagation Models for Through-the-earth Communication

by D.A Hill

NOOK Book(eBook)

$2.99
Available on Compatible NOOK Devices and the free NOOK Apps.
LendMe® See Details
Want a NOOK ? Explore Now

Overview

Theoretical Noise and Propagation Models for Through-the-earth Communication by D.A Hill, J.R. Wait

A survey of the literature on ELF and VLF atmospheric noise has been made. Most measurements have concentrated on the vertical electric field and the horizontal magnetic field rather than the vertical magnetic field which is of interest in transmission between horizontal loops. The limited vertical magnetic field data indicates that the vertical component is generally 10 to 20 dB below the horizontal component. Three laterally inhomogeneous earth models have been analyzed for conversion of horizontal to vertical magnetic field. The rough surface model examines surface effects, the inhomogeneous thin sheet model treat volume effects, and the buried cylinder model treats localized man-made effects. All three models predict the possibility of significant conversion from horizontal to vertical magnetic field. A thin sheet model has also been used to examine transmission from a buried magnetic dipole source. It found that the predicted fields more nearly model the measured data than does the homogeneous half-space model.

Product Details

BN ID: 2940013209718
Publisher: 1001 Property Solutions LLC
Publication date: 10/26/2011
Sold by: Barnes & Noble
Format: NOOK Book
File size: 4 MB

Customer Reviews

Most Helpful Customer Reviews

See All Customer Reviews