John J. Murray

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An Adaptive Dynamic Programming algorithm for nonlinear systems with unknown dynamics is developed. The algorithm is initialized with a positive definite cost functional / stabilizing control law pair (V 0 , k 0) (coupled via the Hamilton Jacobi Bellman Equation). Given (V i , k i), one runs the system using control law k i recording the state and control(More)
Dynamic reconfiguration of field programmable gate arrays (FPGAs) has recently emerged as the next step in reconfigurable computing. Sanders, A Lockheed Martin Company, is developing the enabling technology to exploit dynamic reconfiguration. Sanders, working with Signal Systems Corporation, identified key elements to the successful utilization of context(More)
Following the development of penicillin, complications from streptococcus pneumonia such as endocarditis have become rare. However, certain independent risk factors such as cigarette smoking and being of African-American (AA) decent have been associated with a higher incidence of invasive pneumococcal disease, but only cigarette smoking has been targeted by(More)
This paper presents a statistical model useful for characterizing pulsed active sonar reverberation in shallow water. The model is based on the fundamental assumption that reverberation consists of echoes from point scatterers having random positions, strengths, and Doppler dilations. Receive array beam patterns, simple propagation losses, and planar(More)
OBJECTIVE This study was designed to demonstrate that four weeks of fluticasone propionate (FP) 100 micrograms (mcg) combined with salmeterol 50 mcg twice daily (BID) via DISKUS(®) resulted in protection against bronchospasm induced by activity, as measured by standardized exercise challenge testing in pediatric and adolescent subjects who required regular(More)