DS/SS code acquisition using a locally suboptimum rank detector

Author

Kim, Hong Gil ; Jung, Chang Yong ; Song, Iickho ; Lee, Jooshik ; Yoon, Seokho

Author_Institution

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

Volume

2

fYear

2000

fDate

2000

Firstpage

1134

Abstract

In this paper signed-rank based nonparametric detectors are used for pseudonoise (PN) code acquisition in direct sequence spread spectrum (DS/SS) systems. We first derive the locally optimum rank (LOR) detector and then propose a locally suboptimum rank (LSR) detector and a modified signed-rank (MSR) detector using approximate score functions. We compare the single-dwell scheme without the verification node using the proposed LSR and MSR detectors with that using the conventional squared-sum (SS) and modified sign (MS) detectors. From the simulation results, it is shown that the proposed LSR and MSR detectors perform better than the MS detector by about 2~3 dB and are nearly optimum

Keywords

function approximation; optimisation; pseudonoise codes; signal detection; spread spectrum communication; synchronisation; DS/SS code acquisition; LOR detector; LSR detector; MSR detector; PN code acquisition; approximate score functions; direct sequence spread spectrum; locally optimum rank detector; locally suboptimum rank detector; modified sign detector; modified signed-rank detector; pseudonoise code acquisition; signed-rank based nonparametric detectors; simulation results; squared-sum detector; Degradation; Delay effects; Detectors; Doppler shift; Gas insulated transmission lines; Interference; Parametric statistics; Spread spectrum communication; Tracking loops; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

MILCOM 2000. 21st Century Military Communications Conference Proceedings

Conference_Location

Los Angeles, CA

Print_ISBN

0-7803-6521-6

Type

conf

DOI

10.1109/MILCOM.2000.904104

Filename

904104