DS-SS code acquisition based on simultaneous search and verification

Author

Chang, Hyon Sock ; Park, Yong Wan ; Lee, Yong Hoon

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea

Volume

48

Issue

6

fYear

2000

fDate

6/1/2000 12:00:00 AM

Firstpage

921

Lastpage

924

Abstract

A double-dwell acquisition system that can simultaneously operate search and verification processes, by employing two correlation blocks, is proposed. The search block continuously looks for threshold-crossing instants, and at those instants, the verification block is reset and reinitiated. The threshold is time varying and updated depending on the partial correlation. Computer simulation results indicate that the proposed technique can perform better than existing double-dwell systems which alternate between search and verification modes

Keywords

correlation methods; pseudonoise codes; search problems; spread spectrum communication; synchronisation; DS-SS code acquisition; PN code; computer simulation results; correlation blocks; direct-sequence spread-spectrum; double-dwell acquisition system; partial correlation; pseudonoise code; simultaneous search; simultaneous verification; threshold-crossing instants; time varying threshold; Communications Society; Computer simulation; Correlators; Fading; Impedance matching; Matched filters; Signal to noise ratio; Spread spectrum communication; Testing; Vehicular and wireless technologies;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.848549

Filename

848549