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GATE specifications

The specifications of GATE in terms of its main technical and operational capabilities and features are given in the following:

Technical specifications of GATE

Area of availability

 GATE test area of approx. 65 km˛ (core area about 25 km˛) south-east from Munich
Attainable HDOP and VDOP values

 In the core area: HDOP < 2; VDOP 6-20; NB: these values hold for the real physical constellation; in the “Virtual Satellite Mode” the DOPs of the actual Galileo constellation simulated are obtained
Positioning accuracy

 Horizontal (E1, E5a, E5b): 10 m (2 sigma) for HDOP < 2
Carrier-frequencies




 All three carrier frequencies with their bandwidths are emitted in the test area:
E1: 1575.420 MHz, bandwidth 40.92 MHz
E5: 1191.795 MHz, bandwidth 92.07 MHz
E6: 1278.750 MHz, bandwidth 40.92 MHz
Signal compatibility


 Compliant to Galileo OS SIS ICD;
Compliant to ESA SIS ICD (OS, SoL functionality, C/Nav-0 message for CS, PRS: noise like signal)
Integrity information


 SIS integrity flags are emitted.
Functional integrity testing is possible by means of appropriate configuration of the integrity flags
Atmospheric conditions Signal propagation delays through the ionosphere and the troposphere are realistically emulated.

Operational specifications of GATE

Dynamic range of user





 Maximum speed: 200 km/h
Maximum acceleration:
No abrupt changes in direction and/or acceleration of a vehicle of more than 2 m/s˛ in total, respectively:
• maximum acceleration of user trajectory in direction of motion: 1.5 m/s˛
• maximum changes in direction of user trajectory, lateral acceleration: 1.5 m/s˛
Environmental conditions






 The character of GATE as an outdoor test environment implicates certain restrictions that hold for the execution of regular tests with regard to the weather conditions:
• Temperature: -25 to +55 °C; note that this holds for the GATE stations in the mountains; hence more moderate conditions have to prevail in the valley for regular GATE operation.
• Humidity: 20 to 95 % (non condensing)
In case of storm, thunderstorm, heavy rain, snow or hail the compliance of GATE with the general performance specifications above can not be guaranteed.