Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Safer air traffic with EGNOS

23.04.2007
Vertical guidance by means of signals from the sky: this is what EGNOS, the first European satellite navigation service, will offer pilots during approach and landing.

Flight trials are regularly conducted to demonstrate the new possibilities offered by the European Geostationary Navigation Overlay Service (EGNOS), which has been launched by ESA, the European Commission and Eurocontrol.

A few weeks ago, the Direction Générale de l'Aviation Civile (DGAC – French Civil Aviation Authority) test plane was specially equipped to make tests using EGNOS. At Limoges airport the ATR42 made a number of approaches and landings using the new procedures, in each case aligning itself with the runway's axis and then following a descent path to touchdown.

Inside the plane, normally used for calibration of airport systems in France, the method of analysing the quality of the EGNOS signals was by comparing the landing phases guided by satellite with landings using traditional means such as the Instrument Landing System (ILS).

The results of Limoges trials show again that EGNOS signals allow approaches and landings that meet the safety standards that govern international air traffic.

One of the main advantages of EGNOS in this application is that it is available everywhere without the need for ground infrastructure and it provides vertical guidance procedures for every runway. Furthermore, the cockpit data display is the same as for ILS, so there are no familiarisation problems for the pilots and no additional training costs.

Currently in pre-operational service, EGNOS will be certified in 2008 for safety-of-life applications such as air traffic control.

This system for improving GPS performance will provide a precision of better than two metres, compared to 15 to 20 metres for GPS alone. In addition, there is a guarantee as to the quality of the signals: if a problem is detected, an alarm will be sent to the pilot.

Systems that are equivalent to EGNOS have been set up in the United States, Japan and India, and these systems are compatible and interoperable. An aircraft with a suitable receiver could operate in any area of these areas – it would always have satellite navigation support available, without changing equipment.

For Europe, EGNOS is also the first step in satellite navigation, paving the way for Galileo, which will be the first civil global system.

For European Civil Aviation Authorities, the long term plan is to combine all the existing navigation systems to ensure greater assistance for pilots and the best possible safety of air traffic in Europe and worldwide.

Dominique Detain | alfa
Further information:
http://www.esa.int/esaNA/SEMTHVLJC0F_index_0.html

More articles from Information Technology:

nachricht Seeing the forest through the trees with a new LiDAR system
28.06.2017 | The Optical Society

nachricht Drones that drive
27.06.2017 | Massachusetts Institute of Technology, CSAIL

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Supersensitive through quantum entanglement

28.06.2017 | Physics and Astronomy

X-ray photoelectron spectroscopy under real ambient pressure conditions

28.06.2017 | Physics and Astronomy

Mice provide insight into genetics of autism spectrum disorders

28.06.2017 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>