GPS World, May 2016
However a few challenges still exist Some GNSS constellations have not reached their full operational capabilities as not all satellites are in orbit yet Galileo and BeiDou Additionally the ranging errors of these systems are expected to decrease with improved navigation message accuracy and receiver performance The availability of numerous GNSS constellations results in new requirements for the receivers as well Even though most manufacturers of GNSS equipment already support the additional systems with some products the majority of currently used GNSS receivers is limited to one or two constellations especially in mass market applications In addition the reception quality of the newer systems is not always on the same level as GPS or GLONASS because of the 6 52 GPS WORLD WWW GPSWORLD COM MAY 2016 MORE ONLINE EXHIBITORS RESERVE YOUR BOOTH TODAY June 6 9 2016 Tutorials June 6 Show Dates June 7 8 Dayton Convention Center Dayton Ohio www ion org jnc Classifi ed Session will be held June 9 at the Air Force Institute of Technology Military Navigation Technology The Foundation for Military Ops Sponsored by The Military Division of The Institute of Navigation limited experience that manufacturers have with Galileo and BeiDou This we hope will change in the near future ACKNOWLEDGMENTS This article is based on the paper Future Automotive GNSS Positioning in Urban Scenarios presented at The Institute of Navigation 2016 International Technical Meeting held in Monterey Calif Jan 25 28 MANUFACTURERS The high grade receiver used in our tests was a Septentrio www septentrio com AsteRx3 The receiver was connected to a NovAtel www novatel ca GPS 703 GGG antenna The single frequency receiver we used was a u blox www u blox com LEAM8T GNSS receiver with firmware version 23 Additionally we used a NovAtel OEM6 multi GNSS receiver and an Analog Devices www analog com ADIS16375BMLZ IMU MARTIN ESCHER holds a Dipl Ing in electrical engineering from the Technische Universität TU Braunschweig in Braunschweig Germany and has been employed as a research engineer at the Institute of Flight Guidance IFF since 2010 MIRKO STANISAK is a research assistant and Ph D candidate at the IFF of TU Braunschweig He received his Dipl Ing in mechanical engineering in 2009 and since then has worked on various GNSS related topics ULF BESTMANN received his Dr Ing in mechanical engineering from the TU Braunschweig in 2010 He is employed at the IFF of TU Braunschweig where he is head of the navigation department Further Reading For references related to this article go to gpsworld com and click on More in the navigation bar then on Innovation
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