NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Fade-durations derived from land-mobile-satellite measurements in AustraliaTransmissions from the Japanese ETS-V geostationary satellite were measured at L band (1.5 GHz) in a vehicle driving on roads of southeastern Australia. The measurements were part of a program designed to characterize propagation effects due to roadside trees and terrain for mobile satellite service. It is shown that the cumulative distributions of fade and nonfade durations follow a lognormal and power law, respectively. At 1 percent probability, fades last 2-8 m, and nonfades 10-100 m, depending on the degree of shadowing. Phase fluctuations are generally small, allowing the channel characteristics to be estimated from levels only.
Document ID
19910063526
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Hase, Yoshihiro
(Communications Research Laboratory Ibaraki, Japan)
Vogel, Wolfhard J.
(Texas, University Austin, United States)
Goldhirsh, Julius
(Johns Hopkins University Laurel, MD, United States)
Date Acquired
August 14, 2013
Publication Date
May 1, 1991
Publication Information
Publication: IEEE Transactions on Communications
Volume: 39
ISSN: 0090-6778
Subject Category
Communications And Radar
Accession Number
91A48149
Funding Number(s)
CONTRACT_GRANT: JPL-956520
CONTRACT_GRANT: N00039-89-C-5301
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available