Publications related to Radar | EPFL Graph Search

Hydrometeor classification through statistical clustering of polarimetric radar measurements: a semi-supervised approach

Alexis Berne, Jacopo Grazioli, Marco Gabella, Nikola Besic, Urs Martin Germann

Polarimetric radar-based hydrometeor classification is the procedure of identifying different types of hydrometeors by exploiting polarimetric radar observations. The main drawback of the existing supervised classification methods, mostly based on fuzzy lo ...

Copernicus GmbH2016

Vision-Based Unmanned Aerial Vehicle Detection and Tracking for Sense and Avoid Systems

Pascal Fua, Denis Gillet, Alcherio Martinoli, Vincent Lepetit, Artem Rozantsev, Steven Adriaan Roelofsen, Krishna Raj Sapkota

We propose an approach for on-line detection of small Unmanned Aerial Vehicles (UAVs) and estimation of their relative positions and velocities in the 3D environment from a single moving camera in the context of sense and avoid systems. This problem is cha ...

Ieee2016

Spatial Multiplexing of QPSK Signals With a Single Radio: Antenna Design and Over-the-Air Experiments

Juan Ramon Mosig, Andreas Peter Burg, Julien Perruisseau-Carrier, Mohsen Yousefbeiki, Andrew Charles Mallory Austin

This paper describes the implementation and performance analysis of the first fully operational beam-space multiple-input multiple-output (MIMO) antenna for the spatial multiplexing of two QPSK streams. The antenna is composed of a planar three-port radiat ...

Institute of Electrical and Electronics Engineers2016

Microwave-gated dynamic nuclear polarization

David Lyndon Emsley, Geoffrey Bodenhausen, Aurélien Bornet, Sami Jannin, Arthur César Pinon, Xiao Ji, Mathieu Baudin

Dissolution dynamic nuclear polarization (D-DNP) has become a method of choice to enhance signals in nuclear magnetic resonance (NMR). Recently, we have proposed to combine cross-polarization (CP) with D-DNP to provide high polarization P(C-13) in short bu ...

Royal Society of Chemistry2016

Dielectric Resonator Reflectarray as High-Efficiency Nonuniform Terahertz Metasurface

Julien Perruisseau-Carrier

Advances in terahertz technology rely on the combination of novel materials and designs. As new devices are demonstrated to address the terahertz gap, the ability to perform high-efficiency beam control will be integral to making terahertz radiation a prac ...

Amer Chemical Soc2016

Real-Time, Online Automated System for Measurement of Water-Soluble Reactive Phosphate Ions in Atmospheric Particles

Athanasios Nenes, Kalliopi Violaki

We present a novel automated system for real-time measurements of water-soluble reactive phosphate (SRP) ions in atmospheric particles. Detection of SRP is based on molybdenum blue chemistry with Sn(II) chloride dihydrate reduction. The instrumentation con ...

American Chemical Society2016

Template-Free Wavelet-Based Detection of Local Symmetries

Michaël Unser, Zsuzsanna Püspöki

Our goal is to detect and group different kinds of local symmetries in images in a scale- and rotation-invariant way. We propose an efficient wavelet-based method to determine the order of local symmetry at each location. Our algorithm relies on circular h ...

IEEE2015

Identification of snow precipitation mechanisms and accumulation patterns over complex terrain with very high resolution radar data and terrestrial laser scans

Michael Lehning, Alexis Berne, Jacopo Grazioli, Franziska Gerber, Daniel Wolfensberger

Knowledge on changes in seasonal mountain snow water resources are essential e.g. for hydropower companies. Both, snow accumulation and ablation need to be investigated to make precise predictions of water stored in a seasonal snow cover. Only if the proce ...

2015

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Radar

Hydrometeor classification through statistical clustering of polarimetric radar measurements: a semi-supervised approach

A 420 mu W, 4 GHz Approximate Zero IF FM-UWB Receiver for Short-Range Communications

Vision-Based Unmanned Aerial Vehicle Detection and Tracking for Sense and Avoid Systems

Spatial Multiplexing of QPSK Signals With a Single Radio: Antenna Design and Over-the-Air Experiments

Microwave-gated dynamic nuclear polarization

Dielectric Resonator Reflectarray as High-Efficiency Nonuniform Terahertz Metasurface

Real-Time, Online Automated System for Measurement of Water-Soluble Reactive Phosphate Ions in Atmospheric Particles

Synergy of hyperspectral and microwave remote sensing data to derive bio- and geo-physical parameters for land applications

Template-Free Wavelet-Based Detection of Local Symmetries

Identification of snow precipitation mechanisms and accumulation patterns over complex terrain with very high resolution radar data and terrestrial laser scans

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Chat with Graph Search

Hydrometeor classification through statistical clustering of polarimetric radar measurements: a semi-supervised approach

A 420 mu W, 4 GHz Approximate Zero IF FM-UWB Receiver for Short-Range Communications

Spatial Multiplexing of QPSK Signals With a Single Radio: Antenna Design and Over-the-Air Experiments

Vision-Based Unmanned Aerial Vehicle Detection and Tracking for Sense and Avoid Systems

Microwave-gated dynamic nuclear polarization

Real-Time, Online Automated System for Measurement of Water-Soluble Reactive Phosphate Ions in Atmospheric Particles

Synergy of hyperspectral and microwave remote sensing data to derive bio- and geo-physical parameters for land applications

Dielectric Resonator Reflectarray as High-Efficiency Nonuniform Terahertz Metasurface

Template-Free Wavelet-Based Detection of Local Symmetries

Identification of snow precipitation mechanisms and accumulation patterns over complex terrain with very high resolution radar data and terrestrial laser scans