Results 41 to 50 of about 12,687 (248)
Multi-frequency and multi-angle radar methods application peculiarities for parameters estimation of oil pollutions on sea surface [PDF]
Радиофизика и электроника, 2019 Subject and purpose. Comparative analysis of multi-frequency (MFM) and multi-angle (MAM) radar methods has to be carried out in order to evaluate their measurement capabilities for parameters diagnostic of emergency oil spill on sea surface.
А.Ya. Matveev +6 more
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MicromachinesWe propose a linear polarization rotator metasurface composed of a grounded array of L-shaped corner-embraced patches. Both simulation and experimental results confirm that the metasurface achieves a polarization conversion ratio exceeding 90% across ...
Shi Kong +3 more
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Sea Echoes for Airborne HF/VHF Radar: Mathematical Model and Simulation
Remote Sensing, 2020 Currently, shore-based HF radars are widely used for coastal observations, and airborne radars are utilized for monitoring the ocean with a relatively large coverage offshore.
Fan Ding +3 more
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Enhanced Pre-STAP Beamforming for Range Ambiguous Clutter Separation with Vertical FDA Radar
Remote Sensing, 2021 Medium pulse repetition frequency (MPRF) is an important mode in airborne radar system. Since MPRF mode brings both Doppler and range ambiguities, it causes difficulty for the airborne radar to suppress ground or sea clutter. In recent years, it has been
Weiwei Wang +4 more
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Ice-sheet elevations from across-track processing of airborne interferometric radar altimetry
, 2009 Interferometric Radar Altimeters (IRA's) use dual receive antennas to overcome one of the spatial limitations of pulse-limited altimeters. In a conventional IRA measurement, the range and across-track direction of a scatterer are determined using the ...
Cullen, R. +9 more
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Effects of Atmospheric Refraction on an Airborne Weather Radar Detection and Correction Method
Advances in Meteorology, 2015 This study investigates the effect of atmospheric refraction, affected by temperature, atmospheric pressure, and humidity, on airborne weather radar beam paths.
Lei Wang, Ming Wei, Tao Yang, Ping Liu
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Vertical Air Motion Retrievals From Airborne
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 In-cloud vertical air motion is a key parameter to describe cloud dynamics and lifecycles. Short-wavelength ($Ka$- and $W$-band) radars are often used to observe clouds and extract the vertical air motion from the radar-measured Doppler velocity. However,
Haonan Chen +3 more
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Radar Signatures of a Passenger Car
, 2007 The upcoming new SAR satellites like TerraSAR-X and Radarsat-2 offer high spatial image resolution and dual receive antenna capabilities which open new opportunities for world-wide traffic monitoring applications.
Palubinskas, Gintautas, Runge, Hartmut
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Velocity Dealiased Spectral Estimators of Range Migrating Targets using a Single Low-PRF Wideband Waveform [PDF]
, 2013 Wideband radars are promising systems that may provide numerous advantages, like simultaneous detection of slow and fast moving targets, high range-velocity resolution classification, and electronic countermeasures.
Bidon, Stéphanie +3 more
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The Journal of Engineering, 2019 Conventional space-time adaptive processing (STAP) achieves clutter suppression by combining spatial signals and the temporal pulses. However, extreme slow-moving target cannot be effectively detected by space-time joint filtering in ambiguous and non ...
Yuze Sun, Jian Yang, Xiaopeng Yang
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