121–140 of 163 hits
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    Vibration control of a flexible beam through a smart structure concept

    Goud, A.P. / Umapathy, M. | Tema Archive | 1998
    Active control has become important in structural systems as an efficient tool for vibration suppression. A cantilever beam has been chosen ...

    Detection of buried land mines using a casi hyperspectral imager

    McFee, J.E. / Ripley, H.T. | Tema Archive | 1997
    Experiments were conducted to estimate the probability of detection (PD) and false alarm rate (FAR) for detection of buried mines using a ...

    Active sensor wave propagation health monitoring of beam and plate structures

    Giurgiutiu, V. / Bao, Jing-Jing / Wei, Zhao | Tema Archive | 2001
    Active sensor wave propagation technique is a relatively new method for in-situ nondestructive evaluation (NDE). Elastic waves propagating ...

    Sensitivity of fusion performance to classifier model variations

    Goebel, K.F. | Tema Archive | 2003
    is how the output should be distributed, in particular for multi-class continuous output classifiers. Using the wrong distribution may lead ...

    Parametric investigation of ground roughness on the interference between AP-mine and clutter-object buried under two-dimensional random rough surfaces

    El-Shenawee, M. / Rappaport, C.M. | Tema Archive | 2002
    . Using the Method of Moment (MoM), the new integral equations are transformed into a linear system of equations to be solved for the unknown ...

    A radiometric sensor performance model including atmospheric and infrared clutter effects

    Richter, R. / Davis, J.S. / Duggin, M.J. | Tema Archive | 1997
    The computer code SENSAT developed for radiometric investigations in remote sensing was extended to include two statistical clutter models ...

    Corrosion damage detection with piezoelectric wafer active sensors

    Thomas, D.T. / Welter, J.T. / Giurgiutiu, V. | Tema Archive | 2004
    has become a priority issue for today's Air Force. One of the most critical structural problems is corrosion. In fact the KC-135 now costs$1.2 ...

    Rapid surveying of buried targets by hybrid seafloor image and biomimetic signal classification

    Sternlicht, D.D. / Dikeman, R.D. / Lemonds, D.W. et al. | Tema Archive | 2001
    . Techniques for detecting and classifying mine-like targets in backscatter images created with broadband sonars are starting to yield promising ...

    Using physical models to improve thermal IR detection of buried mines

    Chen, D.H. / Sendur, I.K. / Liao, W.J. et al. | Tema Archive | 2001
    to better detection. Several techniques for exploiting this information are described. The first approach involves ML estimation of model ...

    Mine detection using model-trained multi-resolution neural networks and variational methods

    Szymczak, W.G. / Guo, W. | Tema Archive | 1999
    for training purposes. This under-representation of targets can cause missed classifications and a higher false alarm ratio in the presence of ...

    Fast route-planning approach to aircraft

    Yi Min / Ding, Mingyue / Zhou, Chenping | Tema Archive | 1998

    Fragility analysis of transportation networks

    Murachi, Y. / Orikowski, M.J. / Dong, Xuejiang et al. | Tema Archive | 2003
    -earthquake traffic behavior in animation. This will assist emergency response professionals to gain pre-event insight for developing optimal ...

    Fuzzy logic and neural networks in space applications

    Jani, Y. / Aldridge, J. | Tema Archive | 1993
    constructed around the idea of a set in which the membership is a matter of degree rather than yes or no. Though known for more than 30 years, the ...

    Stochastic simulation of ocean waves and their effect on microwave scattering

    Jean-Pierre, A. / Pierson, W.J. / Groves, G.W. | Tema Archive | 1999
    components for use in studies of radar sea scattering. The effects of Monte Carlo simulations of linear and nonlinear waves on radar backscatter from ...

    Concrete object recognition by multispectral systems

    Zlotnikov, K.A. | Tema Archive | 1998
    for the selection of concrete surfaces, such as runways, against natural backgrounds. The reliability of the object recognition process ...

    An improved decision-theoretic approach to the optimum detection of mines

    Collins, L. / George, V. / Altshuler, T. et al. | Tema Archive | 1997
    for a known environment to incorrect prior knowledge of uncertain parameters in the demining scenario, and the robustness of performance and ...

    Piezo-electric actuation of helicopter rotor blades

    Lieven, N.A.J. | Tema Archive | 2001
    balancing and increased drag. Methods to minimise these effects are suggested. The outcome of the paper is a method for defining the location and ...

    Measurements and modeling of explosive vapor diffusion in snow

    Albert, M.R. / Cragin, J.H. / Leggett, D.C. | Tema Archive | 2000
    The detection of buried mines is important to both for humanitarian and military strategic de-mining both at home and abroad, and recent ...

    Improved UXO detection via sensor fusion

    Zhang, Yan / Jing Li / Carin, L. et al. | Tema Archive | 2000
    Traditional algorithms for UXO remediation experience severe difficulties distinguishing buried targets from anthropic clutter, and in most ...

    Multiresolution motion estimation and target detection

    Karlsen, R.E. / Gorsich, D.J. / Gerhart, G.R. | Tema Archive | 1998
    can cover the field of regard much more quickly than foveal vision. In this paper, we present two hierarchical multiresolution methods for ...