Concept

Time and frequency transfer

Publications associées (37)

An optimally concentrated Gabor transform for localized time-frequency components

Gabor analysis is one of the most common instances of time-frequency signal analysis. Choosing a suitable window for the Gabor transform of a signal is often a challenge for practical applications, in particular in audio signal processing. Many time-freque ...

Springer2014

Formal Analysis of Secure Neighbor Discovery in Wireless Networks

Jean-Pierre Hubaux, Panagiotis Papadimitratos, Marcin Poturalski

We develop a formal framework for the analysis of security protocols in wireless networks. The framework captures characteristics necessary to reason about neighbor discovery protocols, such as the neighbor relation, device location, and message propagatio ...

Ieee Computer Soc2013

Time-Delayed Interactions in Networks of Self-Adapting Hopf Oscillators

Max-Olivier Hongler, Philippe Blanchard, Julio Rodriguez

A network of coupled limit cycle oscillators with delayed interactions is considered. The parameters characterizing the oscillator’s frequency and limit cycle are allowed to self-adapt. Adaptation is due to time-delayed state variables thatmutually interac ...

2013

Wireless GPS-based phase-locked synchronization system for outdoor environment

Alexander Bahr, Frédéric Meyer, Thomas Lochmatter

Synchronization of data coming from different sources is of high importance in biomechanics to ensure reliable analyses. This synchronization can either be performed through hardware to obtain perfect matching of data, or post-processed digitally. Hardware ...

2012

Preliminary Comparison of Data from the Säntis Tower and the EUCLID Lightning Location System

Mario Paolone, Marcos Rubinstein, Carlos Alberto Romero Romero, Wolfgang Schulz, Carlo Alberto Nucci, Abraham Rubinstein

In this paper, direct lightning current measurements obtained on the Sntis Tower from June 1st, 2010 to May 31st, 2011 are used to evaluate the ability of the EUCLID lightning detection network to detect this type of lightning triggered by a tall tower in ...

2011

Formal Analysis of Secure Neighbor Discovery in Wireless Networks

Marcin Poturalski

2011

Distributed arithmetic for efficient base-band processing in real-time GNSS software receivers

Pierre-André Farine, Cyril Botteron, Marcel Baracchi Frei

The growing market of GNSS capable mobile devices is driving the interest of GNSS software solutions, as they can share many system resources (processor, memory), reducing both the size and the cost of their integration. Indeed, with the increasing perform ...

2010

Dual-frequency RF front-ends for GNSS receivers

Frédéric Chastellain

The Global Positioning System (GPS) is a trilateration system which allows to compute the position of a receiver from the time the signals need to propagate from the satellites down to the receiver. Since the Selective Availability (SA) was turned off in 2 ...

EPFL2010

Contribution to the Worldwide multimodal SBAS standard

Pierre-André Farine, Cyril Botteron, Aleksandar Jovanovic, Youssef Tawk

Several studies have been done or have been started in order to extend the current aeronautical Space Based Augmentation System (SBAS) DO-229D Minimum Operational Performance Specification (MOPS) SBAS standard mainly defined by the Radio Technical ComiteeC ...

2009

Frequency synchronization in a random oscillator network

Martin Hasler

In this paper we study the transition from incoherence to coherence in large network of arbitrary coupled, heterogeneous, continuous-time dynamical systems (phase oscillators). We analytically study a generalized Kuramoto model by the instrumentality of or ...

2009

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