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Non-cooperative detection of weak spread-spectrum signals in additive white Gaussian noise


Vlok, JD and Olivier, JC, Non-cooperative detection of weak spread-spectrum signals in additive white Gaussian noise, Institution of Engineering and Technology Communications, 6, (16) pp. 2513-2524. ISSN 1751-8628 (2012) [Refereed Article]

Copyright Statement

Copyright 2012 The Institution of Engineering and Technology

DOI: doi:10.1049/iet-com.2011.0614


A semi-blind method based on principal component analysis and sequence synchronisation is proposed to detect direct sequence spread-spectrum signals in a non-cooperative setting under low signal-to-noise ratio conditions. The intercepted signal is segmented to form a detection matrix from which a feature is extracted through cyclic shifting. Signal detection is then performed using a test statistic based on this feature. The carrier frequency and sequence duration of the signal to be detected are assumed known. Theoretical analysis and a computer simulation study show that the performance of the new detection method is superior to classic energy detection in an additive white Gaussian noise channel.

Item Details

Item Type:Refereed Article
Research Division:Engineering
Research Group:Communications engineering
Research Field:Signal processing
Objective Division:Information and Communication Services
Objective Group:Communication technologies, systems and services
Objective Field:Communication technologies, systems and services not elsewhere classified
UTAS Author:Olivier, JC (Professor JC Olivier)
ID Code:82336
Year Published:2012
Web of Science® Times Cited:12
Deposited By:Engineering
Deposited On:2013-01-25
Last Modified:2017-11-06

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