Concept

Satellite geodesy

Publications associées (65)

Morzine-Avoriaz: densification d'une infrastructure existante. Le téléphérique des Prodains comme nouvelle porte d'entrée pour la station (F)

Avoriaz (1800 m), station de montagne semble arriver à sa «taille limite», selon Jacques Labro. Imaginée pour que le ski soit roi, les pistes se faufilent entre le bâti qui s'adapte précisément à sa topographie. On ne peut plus augmenter la densité, au ris ...

2014

Towards a deployable satellite gripper based on multisegment dielectric elastomer minimum energy structures

Herbert Shea, Samuel Rosset, Jun Shintake, Irina Gavrilovich

Dielectric Elastomer Actuators (DEAs) are an emerging actuation technology which are inherent lightweight and compliant in nature, enabling the development of unique and versatile devices, such as the Dielectric Elastomer Minimum Energy Structure (DEMES). ...

Spie-Int Soc Optical Engineering2014

Calibration of the GNSS Signal Amplitudes in the Interference Pattern Technique for Altimetry

Pierre-André Farine, Cyril Botteron, Miguel Angel Ribot Sanfelix, Mohammed Benjelloun

Global Navigation Satellite Systems signals can be used in bi-static radar systems in order to get altimetric measurements. With a single classic GNSS ground-based receiver processing the combination of the signals coming directly and after one reflection ...

2014

CubETH: low cost GNSS space experiment for precise orbit determination

Volker Gass, Louis Antoine Masson, Anton Ivanov, Federico Belloni, Reto Wiesendanger, Stefano Rossi

CubETH is a project to evaluate and demonstrate possibilities of low-cost GNSS receivers on a nano-satellite by following the Cubesat standard. The development of this new Swiss cubesat mission is underway at the Swiss Polytechnical Schools, launch is plan ...

The 4S Symposium2014

Implementation and Performance of a GPS/INS Tightly Coupled Assisted PLL Architecture Using MEMS Inertial Sensors

Pierre-André Farine, Cyril Botteron, Phillip Tomé, Yannick Stebler, Youssef Tawk

The use of global navigation satellite system receivers for navigation still presents many challenges in urban canyon and indoor environments, where satellite availability is typically reduced and received signals are attenuated. To improve the navigation ...

Mdpi Ag2014

Orthogonal multicarrier modulations in satellite uplinks

Stefano Rosati

In this paper, we analyze Orthogonal Frequency-Division Multiple Access and Single-Carrier Frequency Division Multiple Access as alternative physical layer schemes for the up-link of a satellite network. Both orthogonal frequency-division multiple access a ...

Wiley-Blackwell2014

Normalized GNSS Interference Pattern Technique

Pierre-André Farine, Cyril Botteron, Jérôme Leclère, Miguel Angel Ribot Sanfelix, Mohammed Benjelloun

It is well known that water level and snow height can be monitored with the ground reflectometry GNSS-R approach [1, 2]. In this approach the antenna situated on a mast, receives a direct GNSS signal coming from the satellite and a nadir signal reflected b ...

2013

Modeling and Processing Approaches for Integrated Inertial Navigation

Yannick Stebler

The challenge of estimating the position, velocity and orientation in space in a precise and reliable way, at any time, with and without reception of satellite signals, is the core subject of this dissertation. To this end, the use of Bayesian filters whic ...

EPFL2013

Advanced Algorithmic and Architecture Designs for Future Satellite Navigation Receivers

Youssef Tawk

The use of global navigation satellite system (GNSS) receivers for navigation still presents many challenges, in particular in urban canyon and indoor environments where satellite availability is reduced and received signals are usually much atten- uated. ...

EPFL2013

Observations, theory, and modeling of the differential accumulation of Antarctic megadunes

Michael Lehning

Antarctic megadunes are characterized by significant spatial differences in accumulation rate, with higher accumulation on the windward side and near-zero accumulation on the lee side. This leads to spatial differences in physical properties of snow and su ...

Amer Geophysical Union2013

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