21–40 von 172 Ergebnissen
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    Adaptive sequential algorithms for detecting targets in a heavy IR clutter

    Tartakovsky, A. / Kligys, S. / Petrov, A. | Tema Archiv | 1999
    discusses adaptive sequential detection methods which exploit 'track-before-detect' technology for detection low-SNR targets in IR search and track ...

    Path planning for mine countermeasures command and control

    Piatko, C.D. / Priebe, C. / Cowen, L. et al. | Tema Archiv | 2001
    mined areas, so a decision can be made to punch through the minefield, avoid it, or wait for dedicated mine countermeasures forces to clear it ...

    Stochastic search and graph techniques for MCM path planning

    Piatko, C.D. / Diehl, C.P. / McNamee, P. et al. | Tema Archiv | 2002
    We have been developing path planning techniques to look for paths that balance the utility and risk associated with different routes ...

    Real-time identification of driveable areas in a semi-structured terrain for an autonomous ground vehicle

    Chaturvedi, P. / Sung, E. / Malcolm, A.A. et al. | Tema Archiv | 2001
    A vision system capable of extracting features from a semi-structured environment for vehicle guidance is described. It is primarily used ...

    Estimating the backscatter spectral dependence and relative concentration for multiple aerosol materials from lidar data

    Warren, R.E. / Vanderbeek, R.G. | Tema Archiv | 2004
    section coefficients, backscatter in the case of aerosols and absorptivity for vapors, be known in advance. While this typically is a reasonable ...

    High-fidelity simulation capability for virtual testing of seismic and acoustic sensors

    Wilson, D.K. / Moran, M.L. / Ketcham, S.A. et al. | Tema Archiv | 2005
    This paper describes development and application of a high-fidelity, seismic/acoustic simulation capability for battlefield sensors. The ...

    Robust autofocus algorithm for ISAR imaging of moving targets

    Li, Jian / Wu, Renbiao / Chen, V.C. | Tema Archiv | 2000
    A robust autofocus approach, referred to as AUTOCLEAN (AUTOfocus via CLEAN), is proposed for the motion compensation in ISAR (inverse ...

    Fourier descriptor features for acoustic landmine detection

    Keller, J.M. / Cheng, Zhanqi / Gader, P.D. et al. | Tema Archiv | 2002
    obtainable from the sensors used for landmine detection. The Acoustic Sensing Technology (AST), which uses a Laser Doppler Vibrometer (LDV) that ...

    Wavelets for ultrasonic echo identification in aircraft fuel tanks

    Sadok, M. | Tema Archiv | 2002
    to gauge fuel in commercial and military aircraft. Ultrasonics are among other techniques that were tested for such purposes. Generally, in ...

    Robustness of features for automatic target discrimination in high resolution polarimetric SAR data

    Broek, A. van den / Dekker, R. / Steeghs, P. | Tema Archiv | 2003
    We have studied the robustness of features against aspect variability for the purpose of target discrimination using polarimetric 35 Ghz ...

    Area-based results for mine detection

    Gelenbe, E. / Kocak, T. | Tema Archiv | 1998
    The cost, and the closely related length of time, spent in searching for mines or unexploded ordnance are largely determined by the number ...

    Fault tolerant action selection for planetary rover control

    Huntsberger, T. | Tema Archiv | 1998
    mission to Mars in July of 1997. Sojourner stayed within a 50 meter radius of the Pathfinder Lander. Current NASA plans call for extended year ...

    Bayesian networks for satellite payload testing

    Przytula, K.W. / Hagen, F. / Yung, K. | Tema Archiv | 1999
    exists for a software tool, which would assist engineers in production and operation of satellite systems. We have designed and implemented a ...

    Feedback control for communication and traffic networks

    Ball, J.A. / Day, M.V. / Kachroo, P. et al. | Tema Archiv | 1998
    studied by the authors and solutions for these have been obtained; and (3) traffic routing. Traditionally both kinds of network systems have been ...

    Suitability of scene matching for unmanned vehicle navigation

    Ding, Mingyue / Xiao, Yijun / Ai, Hao-Jun et al. | Tema Archiv | 1998
    the reference map. Due to the sensitivity of scene imaging, only some special zones of the unmanned vehicle's planned area are suitable for ...

    Principal components analysis: extension to scaling for application to images acquired at various ranges

    Cook, G. / O'Brien, G. | Tema Archiv | 1999
    This paper builds on the method of principal components analysis and its use for obtaining from a set of training image vectors a basis in ...

    Development of a high-mobility wheeled robot for humanitarian mine clearance

    Colon, E. / Alexandre, P. / Weemaels, J. et al. | Tema Archiv | 1998

    An improved correlation based detector for a hand-held landmine detector

    Ho, K.C. / Gader, P.D. | Tema Archiv | 2001
    We propose in this paper an improved correlation based GPR algorithm for a hand-held landmine detector. The previously proposed correlation ...

    Computational approach for three-dimensional analysis of time series space physics data

    Mukhedee, J. | Tema Archiv | 2001
    data systems, plotting packages, and user interfaces. We will discuss some of the key design criteria used for developing the new program and ...