Home > Blog

2010 (1)

December (1)

2008 (1)

December (1)

2006 (1)

December (1)

2003 (1)

December (1)

2002 (1)

September (1)
Filtered by tag gate Reset filter

CONTINUED GATE SERVICE TILL END OF 2019

27. January 2017, Veronika Sax - GATE

 

The GATE system will continue its operation until end of 2019. A corresponding contract has been awarded to IFEN GmbH through the German Aerospace Agency (DLR). Currently the Galileo test bed gets adjusted for its operation in combination with the recently started Galileo Initial Service Phase.

The GATE system has been reduced from eight to three transmitter stations and is currently upgraded with the latest signal generator capabilities. These three transmit stations will be operating solely in combination with the Galileo system in orbit and will provide a wide range of error simulation possibilities to be incorporated as virtual satellites within the Galileo constellation.

GATE will provide continuously valuable services to Galileo research and development community for testing their navigation receivers and applications, mainly focused on robustness against various malfunctions which possibly occur in a navigation system. These incidents include wrong navigation data content, satellite clock failures (feared events) and signal deformations (evil waveforms).

For robustness tests of navigation receivers and applications, GATE offers for static tests an office within the test area as well as a full equipped measurement vehicle for land mobile tests. The possibility for UAV tests will be available mid of 2017.


FIRST POSITION FIX WITH GALILEO FOC SATELLITES IN GATE TEST RANGE

11. November 2015, Veronika Sax - Galileo

 

FOC satellites 'Galileo 8 and 7' with SV-ID 22 and 26 (FOC satellites) are now transmitting ephemeris on navigation data.

Today an IFEN NTR receiver has calculated a position fix with SV-ID 22 first time in combination with three virtual Galileo satellites from GATE on E1 as well as on E5a and E5b. Position accuracy was about 1 meter for E5a and about 4 meters for E1 and E5b.

For this test GATE is now synchronized to Galileo System Time from SV-ID 22. Navigation data from SV-ID 22 is currently flagged unhealthy.

FOC Satellites SV-ID 22 and 26 have been launched on March 27th, 2015.


SPECIAL FORCES OPERATIONS COMMAND FROM THE POLICE SOUTH BAVARIA VISITING GATE

19. August 2015, Veronika Sax - GATE

 

As part of a week-long training in the Training Institute of the Bavarian Police in Ainring, officials of the Special Forces Operations Command from the Police South Bavaria visited the Galileo Test and Development Environment (GATE) in Berchtesgaden.

One of the main tasks of the unit is the covert data collection, including the use of technical means. In order to determine, control and surveillance of site locations, such as in containers with dangerous goods, among with others the Global Navigation Satellite System GPS is used. According to visitor statement it is politically scheduled, depending on the successful deployment of the Galileo navigation system, to use the Galileo system in case of application in future. Against this background, information about Galileo, as well as a visit to the world's unique Galileo terrestrial open air testing environment 'GATE' was meaningful and purposeful for the experts.

GATE service engineer of the operating company IFEN GmbH Mr. Kern explained at the beginning of his speech the general principles and functions of satellite-based positioning and explained and presented in a second step the differences from the test environment GATE in a comprehensible way. The lecture was concluded with some user examples for a better illustration. In the end it was possible to show the visitors all eight GATE transmitting stations on the mountains around Berchtesgaden.

The participants thanked for a very informative and insightful talk which included some interesting information, despite their daily tech-savvy work so not known.


THE 'UNIVERSITÄT DER BUNDESWEHR' USES GATE, THE GALILEO TEST AND DEVELOPMENT ENVIRONMENT IN BERCHTESGADEN

09. July 2015, Veronika Sax - Galileo

For several times in the past seven months, the Universität der Bundeswehr München came to Berchtesgaden, to utilize the Galileo Test and Development Environment GATE.

This time tests of ITS (Intelligent Transport Systems) systems stood in the foreground. They are used for communication between different road users. In this way, vehicle data can be exchanged, which is essential for driver assistance systems or automated driving.

For the application, it is very important to check the reliability of the user position determined by satellite navigation systems. To this end, radar signals were initially emitted of a moving car and "sampled" the roadsides. Trees or houses are recognized such as moving objects, e. g. pedestrians, cyclists and other vehicles. If for example a pedestrian crosses the street, the radar system detects the situation in time. Current driver assistance systems have the option of initiate braking or evasive maneuvers automatically. At the same time the information of the brake or taken evasive action is transmitted to vehicles in the vicinity, so that they are warned. Also cyclists can be detected by radar. With ITS it is possible to send a warning to vehicles behind.

One test scenario conducted in GATE, was the one vehicle driving after another vehicle at a constant distance. The guiding vehicle recorded the pure satellite position and the following vehicle additionally checked the determined position with radar signals. The Fraunhofer Institute for Embedded Systems and Communication Technology (ESK) from Munich supported the Test series with their test vehicle. To control the GATE signals through the whole trial period the measurement vehicle of GATE was located at GATE central point.

The test responsible person in charge of Universität der Bundeswehr München recorded on the second day for about 2 hours Galileo signals in addition to GPS and GLONASS signals in the GATE office. To test the newly developed ARAIM (Advanced Receiver Autonomous Integrity Monitoring) algorithms for detection of faulty satellite data, the position of a GATE "satellite" was temporarily deflected artificially. Afterwards the same series of tests has been dynamically recorded over one hour, driving through the GATE test bed of Berchtesgaden, in the IFEN measurement vehicle.

According to first statements both test days have been very successful.


GATE TEST INFRASTRUCTURE AND ITS USE FOR GALILEO INTEGRITY TESTS

20. September 2012, Veronika Sax - Publications Press & Media

THE GATE TEST INFRASTRUCTURE AND ITS USE FOR GALILEO INTEGRITY TESTS
TO SUPPORT ESA`S EUROPEAN GNSS EVOLUTION PROGRAMME

A contribution to the ION GNSS 2012, Nashville, Tennessee, USA

by E, Wittmann, T. Zink, G. heinrichs of IFEN GmbH, 
as well as D. Lekaim, H. Delfour, D. Joly of Thales Alenia Space
and M. Jeannot and M. Tossaint of the European Space Agency (ESA).

Read more


USER R A I M INTEGRITY TESTING WITH UPGRADED GERMAN GALILEO TEST RANGE GATE

21. September 2011, Veronika Sax - Publications Press & Media

USER R A I M INTEGRITY TESTING WITH UPGRADED GERMAN GALILEO TEST RANGE GATE

A contribution to the
24th International Technical Meeting of the Satellite Division
of The Institute of Navigation, Portland, OR, Sept. 19-23, 2011
at the ION GNSS trade fair 2011

by Guenter Heinrichs, E. Loehnert and E. Wittmsnn of IFEN GmbH.

Read more