Results 91 to 100 of about 71,530 (301)

Development of a radar simulator for monitoring wake vortices in rainy weather [PDF]

, 2011
A simulator for the evaluation of the radar signature of raindrops within wake vortices is presented. Simulated Doppler spectrum of raindrops within vortices let to think that it could be a potential criterion for identifying wake vortex hazard in ...
Jeannin, Nicolas, Liu, Zongxhun, Vincent, François, Wang, Xuesong   +3 more
core  

FMCW rail-mounted SAR: Porting spotlight SAR imaging from MATLAB to FPGA [PDF]

, 2014
In this work, a low-cost laptop-based radar platform derived from the MIT open courseware has been implemented. It can perform ranging, Doppler measurement and SAR imaging using MATLAB as the processor.
Gray, D., Le Kernec, J., Melnikov, A.
core   +1 more source

Coupled Ice Sheet Structure and Bedrock Geology in the Deep Interior of East Antarctica: Results From Dome A and the South Pole Basin

Geophysical Research Letters, Volume 52, Issue 19, 16 October 2025.
Abstract The deep interior of the East Antarctic Ice sheet likely contains important records of climate and ice sheet evolution. Here we report on a recent aerogeophysical survey of the southern flank of Dome A, over South Pole Basin. We find an extensive radioglaciologically defined basal unit under Dome A that abruptly truncates within South Pole ...
Duncan A. Young, John D. Paden, Shuai Yan, Megan E. Kerr, Shivangini Singh, Alejandra Vega González, Shravan R. Kaundinya, Jamin S. Greenbaum, Kristian Chan, Gregory Ng, Dillon P. Buhl, Scott D. Kempf, Donald D. Blankenship   +12 more
wiley   +1 more source

The Effect of Sea Surface Slicks on the Doppler Spectrum Width of a Backscattered Microwave Signal

Sensors, 2008
The influence of a surface-active substance (SAS) film on the Doppler spectrum width at small incidence angles is theoretically investigated for the first time for microwave radars with narrow-beam and knife-beam antenna patterns.
Eugeny Meshkov, Mikhail Kanevsky, Vladimir Karaev   +2 more
doaj  

An alternative representation of Synthetic Aperture Radar images as an aid to the interpretation of englacial observations [PDF]

The Cryosphere
Ground-penetrating radar reveals subsurface geometry and ice stratigraphy that contains information about past and present dynamics of the cryosphere. Synthetic Aperture Radar (SAR) is a processing technique based on averaging the radar echoes received ...
Á. Arenas-Pingarrón, A. M. Brisbourne, C. Martín, H. F. J. Corr, C. Robinson, T. A. Jordan, P. V. Brennan   +6 more
doaj   +1 more source

All‐Sky Assimilation of FY‐4B AGRI Reflectance in the CMA‐MESO Model With ARMS as a Forward Operator

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 19, 16 October 2025.
Abstract All‐sky assimilation of visible and near‐infrared observations has attracted widespread attention. In the CMA‐MESO model, this study proposes an optimized reflectance scheme based on the Ross‐Li bidirectional reflectance distribution function (BRDF) model.
Yuchen Xie, Fuzhong Weng, Chengzhi Ye, Ruixia Liu, Xiuzhen Han   +4 more
wiley   +1 more source

Remote temperature profiling in the troposphere and stratosphere by the radio-acoustic sounding technique [PDF]

, 1986
Radar application of the radio-acoustic sounding technique uses the Doppler frequency shift of radar echoes returning from the atmospheric wave structure, in association with a traveling acoustic pulse transmitted from the ground, to determine the speed ...
Inuki, H., Masuda, Y., Matuura, N.
core   +1 more source

Observation and Large‐Eddy Simulation of an Offshore Atmospheric Undular Bore During Sea‐Breeze Initiation

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 19, 16 October 2025.
Abstract A sea‐breeze (SB) initiation under land synoptic wind near a peninsula is analyzed by means of LiDAR measurements and large‐eddy simulations (LES) using the Weather Research and Forecasting (WRF) framework. In the simulation results, local SBs initiated over several coast segments converge in the morning and form a front near the peninsula. As
Mathieu Landreau, Boris Conan, Benjamin Luce, Isabelle Calmet   +3 more
wiley   +1 more source

Hand Gesture Recognition Using Micro-Doppler Signatures With Convolutional Neural Network

IEEE Access, 2016
In this paper, we investigate the feasibility of recognizing human hand gestures using micro-Doppler signatures measured by Doppler radar with a deep convolutional neural network (DCNN).
Youngwook Kim, Brian Toomajian
doaj   +1 more source

Data analysis techniques: Spectral processing [PDF]

, 1983
The individual steps in the data processing scheme applied to most radars used for wind sounding are analyzed. This processing method uses spectral analysis and assumes a pulse Doppler radar.
Strauch, R. G.
core   +1 more source