DocumentCode
910868
Title
Short-term phase stability of audio signals in mobile radio vehicle-base links
Author
Last, J. David ; Wade, Andrew J.
Author_Institution
University College of North Wales, Bangor, U.K.
Volume
28
Issue
2
fYear
1979
fDate
5/1/1979 12:00:00 AM
Firstpage
132
Lastpage
139
Abstract
An investigation into the phase perturbation of an audio tone transmitted over conventional frequency-modulated mobile radio links at frequencies of 72, 170, and 462 MHz is described. Data from stationary and moving vehicles in a variety of urban routes and in mountainous terrain are presented. The effects of noise and of multi-path propagation are identified. The results are interpreted in light of the requirements of a particular automatic vehicle monitoring (AVM) system, which is described briefly, but should be of interest to others concerned with the transmission of phase-sensitive data.
Keywords
Automatic control; Computerized monitoring; Frequency; Land mobile radio; Phase measurement; Propagation delay; Radio transmitters; Stability; Telephony; Vehicles;
fLanguage
English
Journal_Title
Vehicular Technology, IEEE Transactions on
Publisher
ieee
ISSN
0018-9545
Type
jour
DOI
10.1109/T-VT.1979.23781
Filename
1622622
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