Category Archives: Galileo Receivers

Galileo Receivers

High Precision Global Navigation Satellite Systems Antenna

Imec and Septentrio have designed an antenna-RF integrated element of a multi-frequency Global Navigation Satellite Systems (GNSS) antenna for GALILEO, GPS, GLONASS and BeiDou. Developed under the European Community’s Seventh Framework Programme project HANDHELD, the compact antenna can be integrated in multi-frequency handheld GNSS devices for high precision location applications (up to 1 centimeter).

Imec and Septentrio co-developed a compact antenna integrating imec’s innovative GNSS antenna and Septentrio’s GNSS RF front-end. Read more…

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Galileo, first aircraft tracking fix

The four Galileo satellites in orbit have achieved their first aerial fix of longitude, latitude and altitude, marking the first time ever that Europe has been able to determine the position of an aircraft using only its own independent navigation system.

Aircraft tracking via Galileo

This milestone took place on a Fairchild Metro-II above Gilze-Rijen Air Force Base in the Netherlands at 12:38 GMT on 12 November 2013. Read more…

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Ephemeris. Keplerian Parameters

The traditional orbital elements that identify a specific orbit are the six Keplerian parameters.

The main two elements that define the shape and size of the ellipse: Read more…

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Ephemeris

The satellite ephemeris provides the position of that satellite, at a given time, in the spherical polar coordinate system of right ascension and declination. This data is updated every three hours. Read more…

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Galileo Navigation Data

The navigation data contain all the parameters that enable the user to position. They are stored on board each satellite with a validity duration and broadcast worldwide by all the satellites of the Galileo constellation. These are the 4 types of data needed to perform positioning: Read more…

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I/NAV message. The page

There exist two types of I/NAV pages: Nominal and Alert pages.

Nominal pages have a duration of 2 seconds and they are transmitted sequentially in time in two parts of duration 1 second each in both E5b and E1frequency bands. The first part of a page is denoted “even” and the second one is denoted “odd”. Read more…

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I/NAV message

The I/NAV messages are used in Safety of Life (SoL). The I/NAV message structures are tarnsmitted in E5b (1207.14 MHz) and E1 (1575.42 MHz) frequency bands. In both frequencies the same page layout is used since the service provided on these frequencies is a dual frequency service, using frequency diversity. Read more…

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