Search Results - "Ybarra, G.A."

Active Microwave Imaging II: 3-D System Prototype and Image Reconstruction From Experimental Data by Chun Yu, Mengqing Yuan, Stang, J., Bresslour, E., George, R.T., Ybarra, G.A., Joines, W.T., Qing Huo Liu

“…A 3-D microwave imaging system prototype and an inverse scattering algorithm are developed to demonstrate the feasibility of 3-D microwave imaging for medical…”
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Active microwave imaging. I. 2-D forward and inverse scattering methods by Qing Huo Liu, Zhong Qing Zhang, Wang, T.T., Bryan, J.A., Ybarra, G.A., Nolte, L.W., Joines, W.T.

“…Active microwave imaging (MWI) for the detection of breast tumors is an emerging technique to complement existing X-ray mammography. The potential advantages…”
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Fundamentals of ECE: A Rigorous, Integrated Introduction to Electrical and Computer Engineering by Huettel, L.G., Brown, A.S., Coonley, K.D., Gustafson, M.R., Jungsang Kim, Ybarra, G.A., Collins, L.M.

“…The Electrical and Computer Engineering (ECE) Department at Duke University, Durham, NC, is undergoing extensive curriculum revisions that incorporate novel…”
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Microwave Imaging in Layered Media: 3-D Image Reconstruction From Experimental Data by Chun Yu, Mengqing Yuan, Yangjun Zhang, Stang, J., George, R.T., Ybarra, G.A., Joines, W.T., Qing Huo Liu

“…A prototype microwave imaging system for imaging 3-D targets in layered media is developed to validate the capability of microwave imaging with experimental…”
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Detection of target distance in the presence of an interfering reflection using a frequency-stepped double side-band suppressed carrier microwave radar system by Ybarra, G.A., Ardalan, S.H., Hearn, C.P., Marshall, R.E., Neece, R.T.

“…A technique for detecting the distance to a highly reflective target in the presence of an interfering reflection using a frequency-stepped double-sideband…”
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Work in progress - TechXcite: Discover engineering by Ybarra, G.A., Klenk, P.A., Simmons, R., Maxa, E., Guerdat, K., D'Agostino, A., Morgan, T., Shaw, N.

“…TechXcite, an informal, project-based middle school engineering program, is a partnership between Duke University's Pratt School of Engineering, the Department…”
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Integrating Sensing and Information Processing in an Electrical and Computer Engineering undergraduate curriculum by Ybarra, G.A., Collins, L.M., Huettel, L.G., Massoud, H.Z., Board, J.A., Brooke, M., Jokerst, N.M., Roy Choudhury, R., Gustafson, M.R., Willett, R.M., Coonley, K.

“…The Department of Electrical and Computer Engineering at Duke University has completed a full-scale redesign of its undergraduate program based on the theme of…”
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Transcending the traditional: Using tablet PCs to enhance engineering and computer science instruction by Huettel, L.G., Forbes, J., Franzoni, L., Malkin, R., Nadeau, J., Nightingale, K., Ybarra, G.A.

“…Traditional instructional methods present many obstacles to effective teaching and learning in engineering and computer science courses. These include a…”
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Effects of ill-conditioned data on least squares adaptive filters by Ybarra, G.A., Alexander, S.T.

“…Sensitivity results are presented for the LS weight vector of an all-zero adaptive equalizer in an ill-conditioned signal environment. The ill-conditioned data…”
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A complex optimal signal-processing algorithm for frequency-stepped CW data by Wu, S.M., Ybarra, G.A., Alexander, W.E.

“…We derive a complex nonlinear optimal signal-processing algorithm for estimating target ranges from a set of frequency-stepped continuous wave (FSCW)…”
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Optimal signal processing of frequency-stepped CW radar data by Ybarra, G.A., Wu, S.M., Bilbro, G.L., Ardalan, S.H., Hearn, C.P., Neece, R.T.

“…An optimal signal processing algorithm is derived for estimating the time delay and amplitude of each scatterer reflection using a frequency-stepped CW system…”
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A tapered microstrip patch antenna array for use in breast cancer screening via 3D active microwave imaging by Stang, J.P., Joines, W.T., Liu, Q.H., Ybarra, G.A., George, R.T., Mengqing Yuan, Leonhardt, I.

“…Given the measured performance of the antennas in the imaging array and the modeled scattered field data of small tumors within the human breast model, along…”
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Techtronics: hands-on exploration of technology in everyday life by Klenk, P., Barcus, K., Ybarra, G.A.

“…Techtronics is an after-school science enrichment program partnering the Pratt School of Engineering at Duke University and Rogers-Herr Middle School in…”
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A generalized optimal signal processing algorithm for frequency-stepped CW data by Wu, S.M., Ybarra, G.A., Alexander, W.E.

“…We derive a complex non-linear optimal signal processing algorithm for estimating target reflection ranges from a set of frequency-stepped CW measurements. We…”
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Multimedia teaching modules in the engineering K-Ph.D. program at Duke University by Gustafson, M.R., Ybarra, G.A., Chancey, V.C., Merdes, C.L.

“…The Engineering K-Ph.D. Program at Duke University is a partnership between the Pratt School of Engineering and N.C. elementary, middle and high schools. The…”
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High resolution target range estimation using frequency-stepped CW radar by Ybarra, G.A., Bilbro, G.L., Wu, S.M., Ardalan, S.H., Hearn, C.P., Neece, R.T.

“…An optical signal processing algorithm is derived for obtaining high-resolution target range estimates from a small set of narrow-bandwidth frequency-stepped…”
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New method for digitization and computerized analysis of paper recordings of standard 12-lead electrocardiograms by Lawson, W.T., Wagner, G.S., Startt-Selvester, R.S., Ybarra, G.A.

“…It is often important for both clinical and research purposes to perform automated waveform analysis and archiving of paper recordings of standard 12 lead…”
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