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Goodness-of-fit and detection problems in impulsive interference.Brown, Christopher L. January 2000 (has links)
After defining the structure to a signal detection scheme, this dissertation describes and addresses some of the unresolved issues associated with its use when the interference encountered is impulsive. The alpha-stable (alpha-S) family of distributions is used as a model of this interference due to its physical interpretation and its general form. Despite its attractive features, difficulties arise in using this distribution due to, amongst other things, the lack of a general closed form expression for its probability density function. Relevant to the detection scheme used, this affects parameter estimation, signal detector design and goodness-of-fit tests. Significant contributions are made in the latter through the introduction of characteristic function based test that uses the parametric bootstrap. A modification of this test is then made to define a test of the level of impulsive behaviour - again the parametric bootstrap is employed to maintain levels of significance for this and another test based on testing the alpha-S parameter values. The performance of these tests is examined under simulated and two sources of real, impulsive data, namely human heart rate variability and fluctuations in stock prices. Once the appropriateness of the model assumption has been verified, the final, signal detection process may take place. Detectors based on the locally optimum criterion and approximations to it are described and compared to their rank-based counterparts. Results are presented that suggest compelling arguments based on performance and computational complexity for the consideration of rank-based techniques.Keywords: Impulsive behaviour, alpha-stable distribution, stable laws, Gaussianity testing, parameter estimation, goodness-of-fit, parametric bootstrap, signal detection, locally optimum detectors, rank-based detectors.
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Performance analysis of active sonar classifiersHaddad, Nicholas K. January 1990 (has links)
Thesis (Ph. D.)--Ohio University, June, 1990. / Title from PDF t.p.
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Averaging correlation for weak Global Positioning System signal processingZhu, Zhen. January 2002 (has links)
Thesis (M.S.)--Ohio University, 2002. / Title from PDF t.p.
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Optimum detection of differentially-encoded M-ary phase-shift keying in a dispersive aeronautical channelRodenbaugh, John Irvin. January 2002 (has links)
Thesis (M.S.)--Ohio University, June, 2002. / Title from PDF t.p. Includes bibliographical references (leaves 47-48).
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The influence of ambient light on the detectability of low-contrast lesions in simulated ultrasound imagesSankaran, Sharlini. January 1999 (has links)
Thesis (M.S.)--Ohio University, March, 1999. / Title from PDF t.p.
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Response-consequence contingency discriminability when positive and negative reinforcement compete in concurrent schedulesMagoon, Michael Austin, Newland, M. Christopher. January 2005 (has links) (PDF)
Dissertation (Ph.D.)--Auburn University, 2005. / Abstract. Includes bibliographic references.
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Vigilance in Columbian ground squirrels the effects of kinship and mechanisms of the group-size effect /Fairbanks, Bonnie Marie. Dobson, F. Stephen. January 2006 (has links) (PDF)
Thesis(M.S.)--Auburn University, 2006. / Abstract. Includes bibliographic references (p.51-52).
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Stimulus and reinforcer effects on remembering in pigeons /Dougherty, Deirdra H. January 1997 (has links)
Thesis (Ph. D.)--University of California, San Diego, 1997. / Vita. Includes bibliographical references (leaves 87-88).
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Efficacy of various waveforms to support geolocationCrnkovich, Joseph G. January 2009 (has links) (PDF)
Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, June 2009. / Thesis Advisor(s): Kragh, Frank ; Loomis, Herschel H. "June 2009." Description based on title screen as viewed on July 10, 2009. DTIC Identifiers: Theses, geolocation, cross ambiguity function, matched filter detection. Author(s) subject terms: Geolocation, Cross Ambiguity Function, CAF, Matched Filter Detection. Includes bibliographical references (p. 155-157). Also available in print.
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Design of scalable receivers for low probability of detection communications systemsCowan, Frank R. January 2009 (has links) (PDF)
Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, September 2009. / Thesis Advisor(s): Kragh, Frank E. ; Loomis, Herschel H. "September 2009." Description based on title screen as viewed on November 9, 2009. Author(s) subject terms: Direct sequence spread spectrum, binary phase shift keying, Fourier transform, pseudo-random noise, cyclic, low probability of exploitation, low probability of intercept, low probability of detection. Includes bibliographical references (p. 61-62). Also available in print.
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