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GPS based navigation performance analysis within and beyond the Space Service Volume for different transmitters’ antenna patterns

Publications associées (150)

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Resonant optical antennas

Olivier Martin

We have fabricated nanometer-scate gold dipole antennas designed to be resonant at optical frequencies. On resonance, strong field enhancement in the antenna feed gap leads to white-light supercontinuum generation. The antenna length at resonance is consid ...

2005

Indoor Navigation Performance Analysis

Pierre-Yves Gilliéron, Bertrand Merminod

INDOOR NAVIGATION PERFORMANCE ANALYSIS 1. Context of indoor navigation The objective of this research is to define and to implement a dedicated data model for indoor applications. Based on this specific model, route guidance and navigation algorithms ca ...

enc gnss 20042004

Impact of correlation and coupling on the capacity of MIMO systems

Emre Telatar, Volker Pauli

In this work, we consider the multiple antenna systems in which a large number of antennas occupy a given physical volume, and investigate the behavior of the capacity when increasing the number of antennas. In this regime the assumptions of the standard m ...

2004

Dispositif de reperage d'un homme ou d'un objet dans un milieu liquide

Michel Declercq, Patrick Favre

The invention concerns a device for automatically and rapidly locating (10) a person or an object at sea in poor meteorological conditions, comprising a radio wave transmitting device (20) provided on the person or the object and a reception device (30), p ...

2004

GPS/INS integration for pedestrian navigation

This research has been sponsored by the Centre Suisse d'Electronique et de Microtechnique (CSEM) in Neuchâtel, Switzerland. It introduces a system and the algorithms for Pedestrian Navigation using a combination of sensors. The main objective is to localis ...

EPFL2003

Challenging EGNOS in the Swiss Alps

Pierre-Yves Gilliéron

In view of the operational validation of EGNOS, some early tests are being performed with the EGNOS System Test Bed (ESTB). This prototype has been broadcasting an EGNOS-like signal since early 2000. The performance of ESTB is reduced compared to the full ...

2003

Le Concept d'intégrité d'EGNOS

Pierre-Yves Gilliéron

EGNOS (European Geostationary Navigation Overlay Service) sera le système d'augmentation satellitaire européen. Il améliorera la performance des deux systèmes satellitaires militaires GPS (Global Positioning System) et GLONASS (Global Navigation Satellite ...

2003

Impact of correlation and coupling on the capacity of MIMO systems

Bixio Rimoldi, Emre Telatar, Nicolae Chiurtu, Volker Pauli

In this work we consider multiple antenna systems in which a large number of antennas occupy a given physical volume and we investigate the behavior of the capacity when increasing the number of antennas. In this regime the assumptions of the standard mult ...

2003

On the INS and GPS Data Processing for Airborne Gravity Applications

Phillip Tomé, Telmo Cunha

Airborne gravimetric and altimetric measurements depend heavily on the determination of the instantaneous position and attitude of the aircraft. Here, a methodology to process raw inertial data together with GPS data collected from at least two antennas/re ...

1998

Tunable loss filter based on metal coated long period grating

René Salathé, Hans Georg Limberger

A tunable loss filter based on a long-period fiber grating and a Ti/Pt coating is presented Electrical wavelength tuning of 11 nm with an efficiency of 16.4 nm/W and modulation with 2 s rise time were achieved. ...

1998