On the Use of Convolutional Neural Networks for Specific Emitter Identification

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dc.contributor.authorWong, Lauren J.en
dc.contributor.committeechairMichaels, Alan J.en
dc.contributor.committeechairHuang, Jia-Binen
dc.contributor.committeememberHeadley, William C.en
dc.contributor.committeememberBeex, Aloysius A.en
dc.contributor.departmentElectrical Engineeringen
dc.date.accessioned2018-06-13T08:00:50Zen
dc.date.available2018-06-13T08:00:50Zen
dc.date.issued2018-06-12en
dc.description.abstractSpecific Emitter Identification (SEI) is the association of a received signal to an emitter, and is made possible by the unique and unintentional characteristics an emitter imparts onto each transmission, known as its radio frequency (RF) fingerprint. SEI systems are of vital importance to the military for applications such as early warning systems, emitter tracking, and emitter location. More recently, cognitive radio systems have started making use of SEI systems to enforce Dynamic Spectrum Access (DSA) rules. The use of pre-determined and expert defined signal features to characterize the RF fingerprint of emitters of interest limits current state-of-the-art SEI systems in numerous ways. Recent work in RF Machine Learning (RFML) and Convolutional Neural Networks (CNNs) has shown the capability to perform signal processing tasks such as modulation classification, without the need for pre-defined expert features. Given this success, the work presented in this thesis investigates the ability to use CNNs, in place of a traditional expert-defined feature extraction process, to improve upon traditional SEI systems, by developing and analyzing two distinct approaches for performing SEI using CNNs. Neither approach assumes a priori knowledge of the emitters of interest. Further, both approaches use only raw IQ data as input, and are designed to be easily tuned or modified for new operating environments. Results show CNNs can be used to both estimate expert-defined features and to learn emitter-specific features to effectively identify emitters.en
dc.description.degreeMaster of Scienceen
dc.format.mediumETDen
dc.identifier.othervt_gsexam:15412en
dc.identifier.urihttp://hdl.handle.net/10919/83532en
dc.publisherVirginia Techen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectSpecific Emitter Identificationen
dc.subjectConvolutional Neural Networksen
dc.subjectIQ Imbalanceen
dc.subjectEstimationen
dc.subjectFeature Learningen
dc.subjectClusteringen
dc.titleOn the Use of Convolutional Neural Networks for Specific Emitter Identificationen
dc.typeThesisen
thesis.degree.disciplineElectrical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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