Concept

Radar imageur

Publications associées (108)

Quantification of the Small-Scale Spatial Structure of the Raindrop Size Distribution from a Network of Disdrometers

The spatial structure of the raindrop size distribution (DSD) conveys crucial information for reliable quantitative estimation of rainfall using remote sensing techniques. To investigate this question, a network of 16 optical disdrometers has been deployed ...

American Meteorological Society2012

Studies of the spatial variability of alpine snowfall using an X-band polarimetric radar

Michael Lehning, Alexis Berne, Danny Eddy Scipion Castillo

A mobile polarimetric X-band radar (MXPol) was deployed in Davos, Switzerland in collaboration with SLF (WSL - Institute for Snow and Avalanche Research). MXPol was installed in the beginning of October 2009 and collected valuable and continuous informatio ...

2012

Multi-modal change detection, application to the detection of flooded areas: outcome of the 2009-2010 data fusion contest

Devis Tuia

The 2009-2010 Data Fusion Contest organized by the Data Fusion Technical Committee of the IEEE Geoscience and Remote Sensing Society was focused on the detection of flooded areas using multi-temporal and multi-modal images. Both high spatial resolution opt ...

2012

Experimental Quantification of the Sampling Uncertainty Associated with Measurements from PARSIVEL Disdrometers

Alexis Berne, Joël Jaffrain

The variability of the (rain)drop size distribution (DSD) in time and space is an intrinsic property of rainfall, of primary importance for various environmental fields such as remote sensing of precipitation for example. DSD observations are usually colle ...

American Meteorological Society2011

Measurement of the coherent transfer function

Theo Lasser, Christophe Pache, Martin Villiger

It is important to characterize and quantify the imaging performance of optical coherence tomography (OCT) and especially optical coherence microscopy (OCM) systems for validation and calibration of the setup. We suggest using a simple rubber surface, pres ...

2010

Ultra-Wideband, Short Pulse Electromagnetics 9

Ultra-wideband (UWB), short-pulse (SP) electromagnetics are now being used for an increasingly wide variety of applications, including collision avoidance radar, concealed object detection, and communications. Notable progress in UWB and SP technologies ha ...

Springer2010

Improved multi-aircraft ground trajectory prediction for air traffic control

John Lygeros, Ioannis Lymperopoulos

Accurate trajectory prediction plays a fundamental role in advanced air traffic control operations, because it forms the basis for (among others) conflict detection and resolution schemes. It has been demonstrated that improved trajectory prediction accura ...

American Institute of Aeronautics and Astronautics2010

Errors and uncertainties in microwave link rainfall estimation explored using drop size measurements and high-resolution radar data

Alexis Berne

Microwave links can be used for the estimation of path-averaged rainfall by using either the path-integrated attenuation or the difference in attenuation of two signals with different frequencies and/or polarizations. Link signals have been simulated using ...

American Meteorological Society2010

Fast Structure from Motion for Planar Image Sequences

Pierre Vandergheynst, Luigi Bagnato, Andreas Weishaupt

Dense three-dimensional reconstruction of a scene from images is a challenging task. Usually, it is achieved by finding correspondences in successive images and computing the distance by means of epipolar geometry. In this paper, we propose a variational f ...

2010

Airborne LiDAR In-flight Accuracy Estimation

Jan Skaloud, Phillip Tomé, Yannick Stebler

A flexible quality-monitoring tool that assesses data quality in-flight avoids costly problems that are currently detected only in post-processing. ...

2009

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