ASIRAS airborne radar resolves internal annual layers in the dry-snow zone of Greenland [PDF]
, 2006 We present data from the European Space Agency's Airborne SAR/Interferometric Radar Altimeter System (ASIRAS), flown during the CryoVex 2004 field calibration/validation campaign, and new, high-resolution depth profiles of snow density measured in the ...
Shepherd, A. P. +16 more
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Transmit beampattern design for airborne phased-MIMO radar
The Journal of Engineering, 2019 Airborne phased-MIMO radar based on sub-arrays is investigated that can combine the advantages of both MIMO radar and phased array radar. The transmit beampattern design method for airborne phased-MIMO radar is proposed that can control the transmit beam
Ye Dong, Fengfeng Cheng, Lanying Cao
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Numerical study on signatures of atmospheric convective cells in radar images of the ocean [PDF]
, 1999 Current and wind variations at the ocean surface can give rise to a modulation of the sea surface roughness and thus become visible in radar images. The discrimination between radar signatures of oceanic and atmospheric phenomena can be quite difficult ...
Susanne Ufermann +5 more
core +1 more source
Airborne Passive Radar Detection for the APART-GAS Trial [PDF]
, 2022 6 S.In recent years, passive radar has been investigated for airborne applications in imaging and detection of ground targets. There are challenges with detection of land targets from an airborne platform due to platform motion which causes the clutter ...
Rosenberg, L. +4 more
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Forked-Crossing Metasurface for Multi-Band Polarization Conversion with Distinct Bandwidths
MicromachinesThis study presents a reflective and highly efficient multi-band metasurface polarization converter based on a forked-crossing patch array. Both simulation and experimental results reveal that such a metasurface achieves polarization conversion ratio ...
Pengpeng Zhang +3 more
doaj +1 more source
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
doaj +1 more source
High Precision Antenna Characterisation for Broadband Synthetic Aperture Radar Processing [PDF]
, 2014 The airborne F-SAR sensor\cite{fsar}, developed and operated by the DLR-HR institute, acquires very high resolution, fully polarimetric synthetic aperture radar (SAR) data in multiple frequency bands in addition to providing a number of ...
Bernd Gabler +5 more
core +1 more source
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
doaj +1 more source