Extraction of a weak co-channel interfering communication signal using complex independent component analysis
Author
Hagstette, Matthew E.
Date
2013-06Advisor
Fargues, Monique P.
Cristi, Roberto
Metadata
Show full item recordAbstract
Independent Component Analysis (ICA) has largely been applied to the biomedical field over the past two decades and only recently extended to the processing of complex non-circular sources. The feasibility and performance of complex ICA to extract a weak co-channel interfering communications signal from a television broadcast signal is investigated in this thesis. The performance of three algorithms, complex maximization of non-Gaussianity (CMN) by Novey et al., RobustICA by Zarzoso et al., and complex fixed-point algorithm (CFPA) by Douglas, over varied interference-to-noise ratios (INR) for a fixed signal-to-interference ratio (SIR) is obtained by simulation. The communication signals examined for the weak interferer are binary phase-shift keying (BPSK), four-level rectangular quadrature amplitude modulation (4-QAM), and 16-level rectangular quadrature amplitude modulation (16-QAM), and the television broadcast signals are North American standard, Advanced Television Systems Committee (ATSC) and European standard, Digital Video Broadcasting - Terrestrial (DVB-T). Improved performance and sensitivity to the prewhitening step present in the ICA implementations are shown as the number of sensors increases.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
Related items
Showing items related by title, author, creator and subject.
-
A Method for Identification, Representation, and Assessment of Complex System Pathologies in Acquisition Programs
Keating, Charles B.; Katina, Polinpapilinho F.; Joiner, Keith F.; Bradley, Joseph M.; Jaradat, Raed M. (Monterey, California. Naval Postgraduate School, 2018-04-30); SYM-AM-18-104Acquisition programs continue to struggle with increasing complexity. High degrees of emergence, interconnectedness, and uncertainty are the norm rather than exception. The purpose of this research is to explore extension ... -
Designing the user interface : considering the concept of complexity
Frank, John B. (Monterey, California. Naval Postgraduate School, 1991-09);The human-computer interface may be defined as the dialogue that allows communication between the human and the computer, the purpose of such dialogue being the accomplishment ofsome task. This thesis explored the ... -
Optimal Selection of Organizational Structuring for Complex System Development and Acquisitions
DeLaurentis, Daniel A. (Monterey, California. Naval Postgraduate School, 2017-06); PUR-AM-17-207Research suggests that product designs tend to reflect the structure of the organization in which they are conceived (i.e., "Conway's Law"). The development and acquisitions of a complex military system is strongly affected ...