Search Results - "Sletten, Mark A."

Energy dissipation of wind-generated waves and whitecap coverage by Hwang, Paul A., Sletten, Mark A.

“…The energy dissipation per unit area of the ocean surface attributed to fetch‐ or duration‐limited wind‐generated waves can be expressed in terms of wind…”
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Multi-Channel Synthetic Aperture Radar Based Classification of Maritime Scenes by Jansen, Robert W., Sletten, Mark A., Ainsworth, Thomas L., Raj, Raghu G.

“…We present novel experimental evidence that demonstrates the effectiveness of exploiting scene motion information for the analysis of scene structure in…”
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Analysis of radar sea return for breaking wave investigation by Hwang, Paul A., Sletten, Mark A., Toporkov, Jakov V.

“…Low‐grazing angle backscattering data collected by a coherent dual‐polarized radar installed on a fixed tower in the ocean are analyzed to investigate the…”
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Breaking wave contribution to low grazing angle radar backscatter from the ocean surface by Hwang, Paul A., Sletten, Mark A., Toporkov, Jakov V.

“…The anomaly of radar sea spikes, defined here as the non‐Bragg scattering events with backscattering cross‐section of horizontal polarization exceeding that of…”
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Demonstration of SAR Distortion Correction Using a Ground-Based Multichannel SAR Test Bed by Sletten, Mark A.

“…In this paper, a ground-based phased-array radar is used to investigate the ability of a multichannel synthetic aperture radar (MSAR) to produce high-fidelity…”
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Improved Ocean Surface Velocity Precision Using Multi-Channel SAR by Sletten, Mark A., Toporkov, Jakov V.

“…This paper investigates new approaches to estimating the motion of the dynamic ocean surface using a multi-channel synthetic aperture radar (MSAR) with M phase…”
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Evolution of ocean slicks under a rising wind by Marmorino, George O., Smith, Geoffrey B., Toporkov, Jakov V., Sletten, Mark A., Perkovic, Dragana, Frasier, Stephen J.

“…Airborne synthetic aperture radar and high‐resolution infrared imagery are used to examine the evolution of natural ocean slicks during a period of freshening…”
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Comparison of Ocean Currents Derived From Dispersive Shifts in SAR Subaperture Image Sequences to ATI-SAR Surface Velocities by Sletten, Mark A., Menk, Steven, Liang, Robert, Abelev, Andrei

“…We report the initial results of an experimental investigation into the measurement of ocean surface currents with an ultrahigh frequency synthetic aperture…”
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Practical Multichannel SAR Imaging in the Maritime Environment by Jansen, Robert W., Raj, Raghu G., Rosenberg, Luke, Sletten, Mark A.

“…The U.S. Naval Research Laboratory (NRL) recently developed an X-band airborne multichannel synthetic aperture radar (MSAR) test bed system that consists of 32…”
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Correction to “Energy dissipation of wind-generated waves and whitecap coverage” by Hwang, Paul A., Sletten, Mark A.

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Maritime Signature Correction With the NRL Multichannel SAR by Sletten, Mark A., Rosenberg, Luke, Menk, Steven, Toporkov, Jakov V., Jansen, Robert W.

“…This paper describes the Naval Research Laboratory Multichannel Synthetic Aperture Radar (NRL MSAR) and presents initial results from the first field…”
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FOPEN Target Detection via Joint Space/Angle Variation by Sletten, Mark A., Brozena, John

“…This letter demonstrates the detection of a man-made structure hidden beneath a forest canopy through exploitation of the joint spatial/aspect-angle variation…”
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An experimental investigation of wave measurements using a dual-beam interferometer: Gulf Stream as a surface wave guide by Hwang, Paul A., Toporkov, Jakov V., Sletten, Mark A., Lamb, Douglas, Perkovic, Dragana

“…A dual‐beam interferometric synthetic aperture radar measures remotely two radial components of the ocean surface current from a single flight pass. Combining…”
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A Model of Radar Backscatter of Rain-Generated Stalks on the Ocean Surface by Xinan Liu, Quanan Zheng, Ren Liu, Sletten, Mark A., Duncan, James H.

“…In this paper, a model of radar backscattering from rain-generated stalks on the ocean surface in a rain field is proposed. In the model, stalks in the rain…”
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A note on Doppler processing of coherent radar backscatter from the water surface: With application to ocean surface wave measurements by Hwang, Paul A., Sletten, Mark A., Toporkov, Jakov V.

“…The technique for extracting wave period and wave direction from radar backscattering intensity is well developed, but the determination of spectral density or…”
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Numerical Simulations and Analysis of Wide-Band Range-Resolved HF Backscatter From Evolving Ocean-Like Surfaces by Toporkov, J. V., Sletten, M. A.

“…Low-grazing wide-band HF radar echoes from evolving ocean-like surfaces in 2-D space are simulated employing a first-principles boundary integral equation…”
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Airborne synthetic aperture radar observations of "spiral eddy" slick patterns in the Southern California Bight by Marmorino, George O., Holt, Benjamin, Molemaker, M. Jeroen, DiGiacomo, Paul M., Sletten, Mark A.

“…Repeat sampling on hourly time scales using an airborne synthetic aperture radar (SAR) is used to investigate the occurrence and evolving characteristics of…”
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Statistical Properties of Low-Grazing Range-Resolved Sea Surface Backscatter Generated Through Two-Dimensional Direct Numerical Simulations by Toporkov, J.V., Sletten, M.A.

“…Statistical properties of the X-band sea clutter are studied using 2-D direct numerical simulations. Surfaces are modeled as realizations of a Gaussian random…”
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The Effect of Wind-Wave Growth on SAR-Based Waterline Maps by Sletten, M. A., Hwang, P. A.

“…In this paper, we investigate an issue related to the use of synthetic aperture radar imagery to detect ocean and lake waterlines. In a previous publication,…”
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Sea surface velocity vector retrieval using dual-beam interferometry: first demonstration by Toporkov, J.V., Perkovic, D., Farquharson, G., Sletten, M.A., Frasier, S.J.

“…The dual-beam interferometer consists of two interferometric synthetic aperture radars (InSARs), one squinted at 20/spl deg/ forward of broadside, and the…”
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