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Blind estimation of pseudo‐random codes in periodic long code direct sequence spread spectrum signals

Gu, Xiaowei, Zhao, Zhijin, Shen, Lei (2016) Blind estimation of pseudo‐random codes in periodic long code direct sequence spread spectrum signals. IET Communications, 10 (11). pp. 1273-1281. ISSN 1751-8636. (doi:10.1049/iet-com.2015.0374) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:90216)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
https://doi.org/10.1049/iet-com.2015.0374

Abstract

An estimation method of pseudo-random (PN) codes in the periodic long code direct sequence spread spectrum signals using a pair of spreading code and scrambling code [i.e. long scrambling code direct sequence spread spectrum (LSC-DSSS)] is investigated in this study. Via the investigation of properties of triple correlation function (TCF) of m-sequences, the existence of common peaks in the TCFs of different m-sequences is proved, and the corresponding relationship between common peaks and primitive polynomials is further investigated. Four theorems are proposed as supplements of triple correlation theory and a novel estimation algorithm of the PN codes in LSC-DSSS signals is put forward on the basis of the theorems. With certain carrier frequency and chip rate of spreading code, this algorithm first eliminates the influence of information codes through delay-and-multiply operation. Then the TCF of signal is calculated, and the two PN codes in signal are successfully estimated finally by searching and using the common peak coordinates in the TCF. Simulation results show that the proposed algorithm exhibits excellent performance in estimating PN codes in LSC-DSSS signals.

Item Type: Article
DOI/Identification number: 10.1049/iet-com.2015.0374
Uncontrolled keywords: code division multiple access; spread spectrum communication; correlation theory; random codes; m-sequences; polynomials; estimation theory; blind estimation; pseudorandom code; periodic long code direct sequence spread spectrum signal; estimation method; PN code; spreading code; scrambling code; LSC-DSSS signal; triple correlation function; TCF; m-sequences; primitive polynomial; triple correlation theory; estimation algorithm; carrier frequency; spreading code chip rate; information code; delay-and-multiply operation
Subjects: Q Science > QA Mathematics (inc Computing science) > QA 75 Electronic computers. Computer science
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Computing
Depositing User: Amy Boaler
Date Deposited: 14 Sep 2021 15:06 UTC
Last Modified: 15 Sep 2021 11:05 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/90216 (The current URI for this page, for reference purposes)
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