Shulou(Shulou.com)11/24 Report--

CTOnews.com, January 27, ESA recently announced at the 15th European Space Conference that after several months of testing by engineers at the ESTEC Technology Center, the Galileo Global Navigation Satellite system, which is currently composed of 28 satellites, has been enabled for high-precision positioning services (HAS), with horizontal and vertical navigation accuracy reaching 20 cm and 40 cm respectively.

It also means that Europe's Galileo system (including 28 satellites and a global ground system) has become the most accurate satellite navigation service in the world, serving more than 3 billion users worldwide.

"Galileo is not stagnant," said Javier Benedicto, director of navigation at ESA. "this new high-precision service provides a new precision dimension for everyone who needs it, and open service navigation message authentication is already available-allowing users to authenticate Galileo signals when using them to minimize the risk of fraud. The upgraded signal integrity message introduced last year reduces the time for the first repair and enhances the overall robustness of Galileo. "

"the role of ESA is to oversee such basic upgrades to the Galileo system and to work with Galileo's service provider EUSPA, the European Space Program Agency and its owner, the European Union. With the launch of the remaining Galileo satellites, further service improvements will be accompanied by the launch of Galileo second-generation satellites."

According to reports, the new HAS correction information is based on the "E6" band of Galileo signals. CTOnews.com warns that this band is usually inaccessible through smartphones and other mass market products and can only be accessed through high-end receivers, but this information is also available through the Internet and will develop into an open service standard in the next few years.

▲ source: according to ESA officials, EUSPA's new Galileo service is aimed at current high-precision applications such as precision agriculture, resource exploration, land and hydrological surveying, as well as emerging areas such as robotics, cars, trains, ships and drones, autopilot, and AR games.

Rodrigo da Costa, executive director of EUSPA, commented: "with this new high-precision service, Galileo has become the first constellation that can provide high-precision services worldwide directly through space signals and the Internet." "this new function of Galileo will promote innovation in many downstream industries."

The working principle of ▲ Satellite Navigation

The ▲ High Precision Service "calibrates very fast and frequently compared to Galileo Open Service-updating the satellite orbit every 30 seconds and updating the satellite clock every 10 seconds," explains Daniel Blonksi, ESA's Galileo system performance engineer, "and the HAS correction message is designed so that the right receiver can benefit from multiple satellite broadcasts, reconstructing the entire message very quickly."

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