DocumentCode :
3099907
Title :
Acquisition time distribution for Z search strategies in spread spectrum receivers
Author :
Pan, S. ; Dodds, D. ; Kumar, S.
Author_Institution :
Dept. of Electr. Eng., Saskatchewan Univ., Saskatoon, Sask., Canada
fYear :
1990
fDate :
30 Sep-3 Oct 1990
Firstpage :
166
Abstract :
An analysis of the acquisition process for Z serial-search direct-sequence spread spectrum receivers is presented. Using strictly time-domain techniques, equations for the acquisition time probability density function and mean are derived. Probabilities for small acquisition time may be calculated exactly, while larger times require Gaussian approximation to reduce computation time. The analysis brings out the effect of various factors that contribute to acquisition time. The results are suitable for use in the design of receivers which incorporate Z search and utilize a priori information about the code pulse. The method is illustrated by providing acquisition time distribution graphs. The technique known as broken-center/Z search provides the best performance among the various Z strategies
Keywords :
probability; radio receivers; search problems; spread spectrum communication; Gaussian approximation; Z serial search; acquisition time distribution; broken-center/Z search; code pulse; direct-sequence spread spectrum; graphs; mean; probability density function; spread spectrum receivers; Delay; Detectors; Equations; Event detection; History; Probability density function; Random variables; Spread spectrum communication; Uncertainty; Very large scale integration;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Military Communications Conference, 1990. MILCOM '90, Conference Record, A New Era. 1990 IEEE
Conference_Location :
Monterey, CA
Type :
conf
DOI :
10.1109/MILCOM.1990.117406
Filename :
117406
Link To Document :
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