Navigate via the web with the SISNeT receiver
Knowing your precise position anytime via the internet is now possible thanks to the Signal in Space through Internet (SISNeT) technology developed by the European Space Agency.
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19 SET. 2002
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3182
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SISNeT is a new technology developed by the European Space Agency (ESA) that makes satellite navigation accessible via the Internet. Anyone with an Internet connection can tap into this service.
The SISNeT (Signal-in-Space through Internet) specialist website gives extensive information on the general and technical aspects, interface and documentation of the SISNeT system. It includes resources for:
scientists and engineers interested in the development of SISNeT applications
people interested in the general aspects of the SISNeT technology
people wanting to know about existing or planned SISNeT applications and their added value
The highly accurate navigation information made available by SISNeT comes from the EGNOS (European Geostationary Navigation Overlay Service) Signal-In-Space (SIS). The information is available in real time across the Internet. Without SISNeT this information could only be accessed using an EGNOS receiver.
Current applications of the SISNeT technology have included the development of a handheld receiver, based on an iPAQ Personal Digital Assistant (PDA). This has been demonstrated in a car as a navigation tool and outstrips the accuracy of current GPS systems. The system will be tested at the end of this year in buses around urban areas.
Other SISNeT applications are currently being assessed at ESA. One promising application aims at providing guidance information to blind pedestrians. While the performance of GPS-only systems in urban environments may not provide adequate accuracy for all of these applications, the combination with SISNeT may be an excellent solution.
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What is EGNOS?
The European Geostationary Navigation Overlay Service (EGNOS) is Europe’s Satellite-based Augmentation System (SBAS). It augments the signals from Global Navigation Satellite Systems (GNSS) to improve their accuracy, integrity and continuity so that they can be used for Safety of Life applications—operations where a malfunction of the system would lead to a major human or environmental catastrophe.
EGNOS is used throughout Europe to help guide aeroplane landings in over 500 airports and helipads across 35 countries.
How does EGNOS work?
EGNOS provides the information needed to use navigation signals from GPS satellites for safety critical applications. It improves the accuracy of position measurements from a few metres to around one metre, informs users of the errors in the position measurements and warns of disruption to a satellite signal within six seconds.
Who's involved in EGNOS?
Who benefits from EGNOS
The European Geostationary Navigation Overlay Service (EGNOS), Europe’s Satellite-based Augmentation System (SBAS), enhances the positioning data provided by GPS in Europe. It improves the accuracy of positioning measurements, informs users of errors in the positioning measurements and warns of disruptions to the satellite signals within six seconds.
Its navigation signal is suitable for use by aircraft, ships, trains and other forms of transport.
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