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08. July 2016, admin - IFEN Products

For over 17 years the scientists, engineers, and pilots of the Perlan Project have pushed the edge of manned glider flight, using South American mountain winds to surf the air to ever higher altitudes. This July they will attempt to set the world record for high altitude unpowered flight, soaring to the edge of space at 90,000 feet-almost double the previous record of 50,721 feet. The world of competitive gliding is regulated by the Fédération Aéronautique Internationale (FAI) - The World Air Sports Federation, which oversees all aspects of glider flight record attempts and their certification. Specifically, the FAI's Global Navigation Satellite System (GNSS) Flight Recorder Approval Committee determines which GNSS-based flight recorders can be used for high-altitude record attempts. Currently, the LX-9000 is the only approved flight recorder for high-altitude glider record attempts, but it has never been tested above 40,000 ft, that is until SLAB's PhD student Duncan Eddy and GPS Lab's Researcher Todd Walter started helping under the supervision of Prof. Simone D'Amico.

Eddy and Walter used SLAB's high-fidelity IFEN GNSS signal simulator to test Perlan's dual LX-9000 flight recorders with simulated Global Positioning System (GPS) signals similar to those the receivers will see on the day of their world-record-attempt flight late this July. Since the only known winds that can propel a glider to the stratosphere occur in the remote mountains of southern Argentina, the GNSS signal simulator represents the only way to verify the functionality and performance of the flight recorders at that location, before the actual flight. The testing set-up (pictured left) and the rigorous scenario definition, which reproduces the planned climbing trajectory, helped uncover information regarding the behavior of the flight recorders that is crucial for the successful validation of any record setting attempt. This was only possible thanks to the experience gained by Duncan Eddy with the IFEN GNSS signal simulator in the frame of his PhD on advanced algorithms and hardware for precision GNSS navigation in space.

Text Source Space Rendezvous Laboratory / Stanford




15. June 2016, admin - Miscellaneous


The Chinese Beidou system's 23rd satellite was launched into orbit Sunday aboard a Long March 3C rocket. The Long March 3C rocket lifted off at 1530 GMT (11:30 a.m. EDT) from the Xichang launch base in southwestern China's Sichuan province, according to the state-run Xinhua news agency.

This is the third new satellite to join the fleet this year. The 21st satellite was launched in February, and the 22nd in March. The satellite was deployed into an elliptical orbit more than 22,000 miles (35,700 kilometers) above Earth. It will power its way into a circular geosynchronous orbit over the equator in the coming weeks.

Text source GPS World




06. April 2016, admin - Galileo

On April 6th, 2016 the next two Galileo FOC* satellites (Danielè and Alizée) have arrived safe and sound at the launch site in Kourou (French Guiana).

The Launch of the next two satellites is scheduled for May 24, 2016 and will be carried out by Arianespace from the Guyana Space Center in French Guyana. It will orbit two FOC (Full Operational Capability) satellites, and precedes Arianespace's already scheduled launch of four Galileo satellites on an Ariane 5 ES during the fourth quarter of 2016.

With these two launches, six new Galileo satellites will be deployed in 2016, as in 2015, bringing the total number in the Galileo-constellation to 18 by the end of the year. Each of the Galileo satellites is named after one of the children who won the painting competition organized by the European Commission in 2011.


* The FOC (full operational capability) phase of the Galileo program is being funded and executed by the European Union. The European Commission and the European Space Agency ESA have signed a contract under which ESA acts as the development and sourcing agency on behalf of the Commission. The view expressed here does not necessarily reflect the official position of the European Union and/or ESA. Galileo is a registered trademark owned by the EU and ESA and registered under OHIM application number 002742237.


Text source OHB SE Website




31. March 2016, admin - IFEN Software


The following improvements and new functions are available with SX3 / SX-NSR Software Receiver software version 3.2.1.

New Functionality

  • New SX3 frontend mode providing sample rate of 100MHz.
  • SX3 frontend temperature log-file.
  • Automatic calibration of Galileo E5ab (AltBOC) tracking when using SX3 frontend.
  • New optional available scintillation monitor module and dedicated configuration 'ScintillationMonitor.nsr'.
  • New API example "TrackingLoopAdvanced".
  • New driver model used for SX3 frontend.

Improvements / Bug-Fixes

  • Updates in SX3 reflectometry package.
  • Correct issue for 2-bit sample format, this improves C/N0 for tracked satellites.
  • IRNSS navigation data decoding now can be activated for L5 or for S-Band simultaneously.
  • Correct gravity model computation in GnssInsKalman modul.



20. January 2016, admin - Miscellaneous

The fifth satellite in the Indian Regional Navigation Satellite System (IRNSS) constellation lifted off on time Jan. 20 from Satish Dhawan Space Center on Sriharikota Island, on India's east coast.

As in the previous four launches of IRNSS satellites, the navigation satellite rode aboard a Polar Satellite Launch Vehicle (PSLV). This is the 33rd launch for the PSLV.

After the PSLV-C31 lift-off at 0401 GMT Wednesday (11:01 p.m. EST Tuesday) with the ignition of the first stage, the subsequent important flight events - strap-on ignitions and separations, first stage separation, second stage ignition, heat-shield separation, second stage separation, third stage ignition and separation, fourth stage ignition and satellite injection - all took place as planned.

We are pleased to announce that the signal quality of the IRNSS Navigation Payload has been tested successfully by using IFEN´s high performance IRNSS Payload Coherence Test Receiver (PCTR).


11. November 2015, admin - 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.

IFEN at Winterberg

04. November 2015, admin - IFEN Company



As part of our sponsoring activities 2015 our logo went together with Sandra Kroll and her bob to the selection races to Winterberg.

After a successful first pass Sandra and her team members have even been placed ahead of world cup starter Anja Schneiderheinze. Overall the second place could be secured after the second pass.

Congratulations to the whole team and all the best for the remaining races.