Spread spectrum codephase acquisition by sequence estimation

Author

Dodds, David E. ; Zhang, Xing

Author_Institution

Saskatchewan Univ., Saskatoon, Sask., Canada

fYear

1993

fDate

14-17 Sep 1993

Firstpage

892

Abstract

Two new acquisition schemes for direct sequence spread spectrum codephase acquisition have been proposed in this study. Both schemes use cyclic accumulation and a matched filter to provide an estimate of the correct codephase. Transition probabilities were evaluated by using computer simulation and the mean acquisition times were determined using a system model. Comparisons of the mean acquisition time for five schemes were made. The results indicate that both proposed schemes will achieve a much better acquisition time performance than previously reported methods

Keywords

estimation theory; filtering and prediction theory; matched filters; probability; spread spectrum communication; synchronisation; computer simulation; cyclic accumulation; matched filter; mean acquisition time; sequence estimation; spread spectrum codephase acquisition; system model; transition probabilities; Computer simulation; Correlation; Frequency estimation; Frequency synchronization; Interference; Jamming; Matched filters; Recursive estimation; Signal to noise ratio; Spread spectrum communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 1993. Canadian Conference on

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-2416-1

Type

conf

DOI

10.1109/CCECE.1993.332437

Filename

332437