Title page for ETD etd-05062011-111048


Type of Document Master's Thesis
Author Malady, Amy Colleen
URN etd-05062011-111048
Title Cyclostationarity Feature-Based Detection and Classification
Degree Master of Science
Department Electrical and Computer Engineering
Advisory Committee
Advisor Name Title
Beex, A. A. Louis Committee Chair
Bose, Tamal Committee Member
Meehan, Kathleen Committee Member
Keywords
  • robust estimation
  • continuous phase modulation
  • cyclostationarity
  • detection
  • automatic modulation classification
Date of Defense 2011-04-22
Availability unrestricted
Abstract
Cyclostationarity feature-based (C-FB) detection and classification is a large field of research that has promising applications to intelligent receiver design. Cyclostationarity FB classification and detection algorithms have been applied to a breadth of wireless communication signals – analog and digital alike. This thesis reports on an investigation of existing methods of extracting cyclostationarity features and then presents a novel robust solution that reduces SNR requirements, removes the pre-processing task of estimating occupied signal bandwidth, and can achieve classification rates comparable to those achieved by the traditional method while based on only 1/10 of the observation time. Additionally, this thesis documents the development of a novel low order consideration of the cyclostationarity present in Continuous Phase Modulation (CPM) signals, which is more practical than using higher order cyclostationarity.

Results are presented – through MATLAB simulation – that demonstrate the improvements enjoyed by FB classifiers and detectors when using robust methods of estimating cyclostationarity. Additionally, a MATLAB simulation of a CPM C-FB detector confirms that low order C-FB detection of CPM signals is possible. Finally, suggestions for further research and contribution are made at the conclusion of the thesis.

Files
  Filename       Size       Approximate Download Time (Hours:Minutes:Seconds) 
 
 28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access 
  Malady_AmyC_T_2011.pdf 988.57 Kb 00:04:34 00:02:21 00:02:03 00:01:01 00:00:05

Browse All Available ETDs by ( Author | Department )

dla home
etds imagebase journals news ereserve special collections
virgnia tech home contact dla university libraries

If you have questions or technical problems, please Contact DLA.