DocumentCode :
1224504
Title :
Level Crossing Rates of an Equal-Gain Predetection Diversity Combiner
Author :
Lee, William C.Y.
Author_Institution :
Bell Telephone Laboratories,Inc.,Holmdel,N. J.
Volume :
18
Issue :
4
fYear :
1970
fDate :
8/1/1970 12:00:00 AM
Firstpage :
417
Lastpage :
426
Abstract :
An 
branch equal-gain predetection space-diversity combiner is analyzed for the case where the signals received from the individual branches of such a combiner are partially correlated. The level crossing rate (LCR) of the combined signal envelope equals the probability density function times a function of the direction of motion. When a linear antenna array is used on a mobile radio receiver, the direction of motion does not affect the shape of the LCR curve of the combined signal but does affect the absolute values, especially when the antenna spacing 
is less than 0.5 λ. There is apparently no effect for 
branch equal-gain predetection space-diversity combiner is analyzed for the case where the signals received from the individual branches of such a combiner are partially correlated. The level crossing rate (LCR) of the combined signal envelope equals the probability density function times a function of the direction of motion. When a linear antenna array is used on a mobile radio receiver, the direction of motion does not affect the shape of the LCR curve of the combined signal but does affect the absolute values, especially when the antenna spacing is less than 0.5 λ. There is apparently no effect for Keywords :
Antenna arrays; Directive antennas; Diversity reception; Fading; Land mobile radio; Mobile antennas; Motion analysis; Receivers; Shape; Signal analysis;
fLanguage :
English
Journal_Title :
Communication Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9332
Type :
jour
DOI :
10.1109/TCOM.1970.1090372
Filename :
1090372
Link To Document :
