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Stefan Erker


News
GPS L5: The Real Stuff   June 18, 2010
By: André Hauschild,Michael Meurer,Oliver Montenbruck,Peter Steigenberger,Richard B. Langley,Stefan Erker

The L5 signal of the new Block IIF satellite shows a very favorable signal strength (Fig. 1), which is somewhere in between the L1 and L2C signal strength for the employed antenna and slightly higher than that of the GIOVE-A/B satellites. While the L5 test signal of the second-last Block IIR-M...more >>

Article
Innovation: One Year in Orbit   September 1, 2009
By: Christian Kurzhals,Maktar Malik,Manuela Rapisarda,Matthias Söllner,Michael Meurer,Stefan Erker,Steffen Thölert,Wolfgang Kogler

GIOVE-B has now been in orbit for just over one year. How well is it performing? In particular, what can we say about one of GIOVE-B’s pioneering features: its E1 CBOC signal? In this month’s column, we take a detailed look at a particular monitoring and assessment program set up to examine the...more >>

Article
Innovation: L5 Signal First Light   June 1, 2009
By: André Hauschild,Michael A. Temple,Michael Meurer,Oliver Montenbruck,Richard Langley,Stefan Erker,Steffen Thölert

Great excitement surrounds the activation of a new transmitter from a satellite — an occasion dubbed first light. Research groups around the globe joined the GPS Wing in monitoring and analyzing the first L5 signals from space. We describe the equipment and procedures used to capture and analyze...more >>