Kevin Cunningham

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LE leading edge Transonic free-to-roll and static wind tunnel tests for four military aircraft – the AV-8B, the F/A-18C, the pre-production F/A-18E, and the F-16C – have been analyzed. These tests were conducted in the NASA Langley 16-Foot Transonic Tunnel as a part of the NASA/Navy/Air Force Abrupt Wing Stall Program. The objectives were to evaluate the(More)
This paper presents a custom hardware design for computing Singular Value Decomposition (SVD) of the radio communication channel characteristic matrix. The custom hard-ware was implemented to reduce the SVD computing time. The pipeline hardware developed is suitable for computing the SVD of a sequence of 2 × 2 complex-value matrices used in MIMO-OFDM(More)
A method for accurately identifying aircraft dynamic models in turbulence was developed and demonstrated. The method uses orthogonal optimized multisine excitation inputs and an analytic method for enhancing signal-to-noise ratio for dynamic modeling in turbulence. A turbulence metric was developed to accurately characterize the turbulence level using(More)
This paper presents a custom reconfigurable hardware design based on Software Defined Radio (SDR) for Precoding problems of the IEEE 802.11n standard. The pre-coding technique of Multiple-Input-Multiple-Output and Orthogonal Frequency Division Modulation (MIMO-OFDM) systems, such as the IEEE 802 standards, requires to solve a sequence of complex-valued(More)
Numerical simulations based on the nonlinear parabolic wave equation are used to investigate time reversal of sound beams radiated by unfocused and focused sources. Emphasis is placed on nonlinear propagation distortion in the time-reversed beam, and specifically its effect on field reconstruction. Distortion of this kind, due to amplification during time(More)
One of the major themes of the LINDO family of optimizers has been to provide easy-to-use optimization that is nevertheless of industrial strength, thereby broadening the potential user base for this powerful tool. In the following, we describe the notable, or at least memorable, events leading up to the LINDO of today. We wrote the first ancestor of(More)
1 Re search Lab o ra tory for Ar chae ol ogy and the His tory of Art, Dyson Perrins Build ing, South Parks Road, Uni ver sity of Ox ford, Ox ford, OX1 3QY, UK; mi chael.petraglia@rlaha.ox.ac.uk, nicole.boivin@rlaha.ox.ac.uk, pe ter.ditchfield@rlaha.ox.ac.uk, mi chael.has lam@rlaha.ox.ac.uk 2 De part ment of His tory and Ar chae ol ogy, Karnatak Uni ver(More)
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