DocumentCode :
1158245
Title :
Analysis, computation, and mitigation of radio systems´ mutual interference effects in collocated vehicular transceivers
Author :
Gavan, Jacques
Author_Institution :
Center for Technol. Educ., Tel Aviv Univ., Holon, Israel
Volume :
43
Issue :
3
fYear :
1994
fDate :
8/1/1994 12:00:00 AM
Firstpage :
447
Lastpage :
456
Abstract :
The recent increase in the use of mobile radios and systems has enhanced the operation probability and harmful mutual interference resulting from the collocation of two transceivers in the same vehicle. Military mobile systems are especially vulnerable to the collocation operation. Civilian systems, however, are now also being affected. This paper provides a better understanding of the effects of mutual interference and the means by which they can be reduced. This is shown by analyzing the conditions which cause mutual interference, developing computational methods to quantize their effects, and applying these computational results to a typical vehicular VHF radio system so as to minimize their effect. Computational methods are developed using both deterministic and novel empirical relationships to quantize the mutual interference effects as a function of antenna spacing and frequency intervals. The shielding and grounding techniques fall outside the scope of this paper, and the mutual interference effects on remote transceivers are treated in a forthcoming paper. The computation results and mitigation techniques presented in this paper can be applied from the initial development phase of transceivers intended for use in collocated operations, thereby significantly improving their system reliability and operational frequency management policy
Keywords :
interference suppression; military systems; mobile antennas; mobile radio systems; radiofrequency interference; road vehicles; transceivers; antenna spacing; civilian systems; collocated vehicular transceivers; collocation operation; computational methods; frequency intervals; military mobile systems; mobile radios; mutual interference; operational frequency management; system reliability; vehicular VHF radio system; Cause effect analysis; Frequency; Grounding; Helium; Interference; Land mobile radio; Radio transmitters; Reliability; Transceivers; Vehicles;
fLanguage :
English
Journal_Title :
Vehicular Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9545
Type :
jour
DOI :
10.1109/25.312801
Filename :
312801
Link To Document :
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