DocumentCode
950063
Title
A traffic information receiver for road/automobile communication system
Author
Hatashita, H. ; Takahashi, J. ; Nagashima, T. ; Abe, K. ; Horii, S.
Author_Institution
Hitachi Ltd., Tokyo, Japan
Volume
39
Issue
3
fYear
1993
Firstpage
540
Lastpage
544
Abstract
A front-end for a traffic information receiver for a road/automobile communication system has been developed. this front-end can combat fast fading and consumes lower power than other technologies. Good characteristics under fast fading have been obtained by employing demodulation techniques, i.e. FGCA (fast gain control amplifier) and a logarithmic amplifier. The front-end operates at 5 V and power dissipation of 1.0 W is realized. A high sensitivity of -95 dBm is realized. A local leakage of less than -50 dBm is obtained, along with a compactness of 70 cm3
Keywords
demodulation; demodulators; mobile radio systems; radio receivers; 1 W; 5 V; automobile communication system; demodulation techniques; fast fading; fast gain control amplifier; logarithmic amplifier; power dissipation; traffic information receiver; Automobiles; Circuits; Communication system traffic; Fading; Gallium arsenide; RF signals; Radio frequency; Radiofrequency amplifiers; Roads; Vehicles;
fLanguage
English
Journal_Title
Consumer Electronics, IEEE Transactions on
Publisher
ieee
ISSN
0098-3063
Type
jour
DOI
10.1109/30.234632
Filename
234632
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