Search Results - "Zurk, L.M."

Enhanced Kalman Filter Algorithm Using the Invariance Principle by Chensong He, Quijano, J.E., Zurk, L.M.

“…Target tracking in multistatic active sonar systems is often limited in shallow-water environments due to the high level of bottom reverberation that produces…”
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Passive Sonar Array Sub-space Processing based on Modal Decomposition by Zurk, L.M., Velankar, M.

“…In passive underwater sonar, current attention is on large arrays which can provide the needed array gain and high resolution beamforming. However, full-rank…”
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Use of the invariance principle for target tracking in active sonar geometries by Quijano, J.E., Zurk, L.M.

“…The propagation of broadband acoustic waves in shallow water channels is a complicated phenomenon that depends critically on the attributes of the water column…”
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Application of Radiative Transfer Theory to Acoustic Propagation in the Ocean Bottom by Quijano, J.E., Zurk, L.M.

“…Acoustic scattering from the ocean bottom has been extensively studied by applying analytical methods based on the wave equation. This has the advantage of…”
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Experimental observation and statistics of multipath from terrain with application to overland height finding by Zurk, L.M.

“…Data is presented from an airborne experiment designed to evaluate electromagnetic pulse scattering from a variety of terrain types for the application of…”
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Coral Fish Shoal Detection from Acoustic Echograms by Lotz, J., Zurk, L.M., McNames, J., Ellis, T., Ecochard, J.-L.

“…An algorithm was developed that processes data from a single-beam echosounder and GPS system to detect and analyze fish shoals. The proposed algorithm provides…”
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Evaluation of reduced-rank, adaptive matched field processing algorithms for passive sonar detection in a shallow-water environment by Lee, N., Zurk, L.M., Ward, J.

“…This paper evaluates the performance of several reduced-rank, adaptive matched field processing (AMFP) algorithms for passive sonar detection in a…”
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Electromagnetic scattering calculated from pair distribution functions retrieved from planar snow sections by Zurk, L.M., Tsang, L., Shi, J., Davis, R.E.

“…Electromagnetic wave scattering in dense media, such as snow, depends on the three-dimensional (3D) pair distribution function of particle positions. In snow,…”
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Experimental observation and modeling of overland height finding by Zurk, L.M., Geddes, B.

“…We present airborne experimental observations at UHF and VHF of electromagnetic scattering from terrain and demonstrate how such a signal can be used to…”
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Frequency domain feature extraction from synthetic aperture radar data by Matzner, S.A., Zurk, L.M.

“…Most feature recognition and classification algorithms for synthetic aperture radar (SAR) are done in the image domain, and thus do not explicitly exploit the…”
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Dominant wave directions observed in synthetic aperture radar imagery of the ocean by Plant, W.J., Zurk, L.M.

“…Shows that apparent dominant wave directions in synthetic aperture radar (SAR) imagery of the ocean can differ from true wave directions by as much as 40…”
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Two-dimensional simulations of SAR imagery of ocean waves by Zurk, L.M., Plant, W.J.

“…The authors have carried out two-dimensional simulations of synthetic aperture radar (SAR) imagery of ocean waves and compared these simulations with actual…”
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Monte Carlo simulations of the extinction rate of densely packed spheres based on solution of Maxwell's equations by Zurk, L.M., Tsang, L.

“…In this paper we present results based on Monte Carlo simulations of the extinction rate of a dense medium comprised of dielectric, spherical scatterers. The…”
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Multipath return for radar targets over a rough surface by Ogden, G., Matzner, S., Zurk, L.M., Blejer, D.

“…A scattering formulation is described here which can be used to understand and predict the electromagnetic scattering from a target positioned over a…”
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Single Scattering and Diffusion Approximation for Modified Radiative Transfer Theory of Wave Multiple Scattering in Dense Media Near Resonance - Summary by Barabanenkov, Yu. N., Zurk, L.M., Barabanenkov, M. Yu

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Terahertz scattering from a rough granular surface by Zurk, L.M., Orlowski, B., Sundberg, G., Zhen Zhou, Antao Chen

“…For reflection spectroscopy in particular, the measured response from an explosive material may be dominated by rough surface scattering, which is in turn…”
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Measurement and application of incoherent terahertz scattering using time-domain spectroscopy by Arbab, M.H., Winebrenner, D.P., Antao Chen, Danling Wang, Thorsos, E.I., Zurk, L.M.

“…Measurement of incoherent rough surface scattering powers in terahertz frequency regime by means of time-domain spectroscopy has been for the first time…”
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3D adaptive matched field processing for a moving source in a shallow water channel by Zurk, L.M., Lee, N., Ward, J.

“…In this paper we demonstrate passive detection and localization in a noisy shallow water environment using matched field processing (MFP) with data obtained…”
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Monte Carlo simulations of the extinction rate of densely packed spheres with clustered and non-clustered geometries by Zurk, L.M., Ding, K.H., Tsang, L., Winebrenner, D.P.

“…The attempt to characterize physical media such as snow has led to the development of discrete particle models, in which aggregations of particles are embedded…”
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Electromagnetic pulse propagation and scattering from terrain: experimental observation and comparison with theory by Zurk, L.M., Coutts, S.D.

“…We consider the problem of electromagnetic propagation over variable terrain from both an experimental and a theoretical standpoint. The experimental data were…”
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