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André Hauschild


News
Three's the Challenge   July 20, 2010
By: André Hauschild,Oliver Montenbruck,Peter Steigenberger,Richard B. Langley

A small variance in the L5 signal, which remains well within signal specifications and will not affect pseudorange measurements, may show some impact on triple-frequency combinations of the signal’s carrier phase in high-precision applications. Observations suggest a temperature-dependent line...more >>

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 >>

Blog
Evaluating the Performance of GPS/GIOVE Integrated Precise Point Positioning   June 10, 2010
By: André Hauschild,Landon Urquhart,Marcelo Santos,Oliver Montenbruck,Peter Steigenberger,Richard B. Langley,Wei Cao

Precise point positioning (PPP) has gained an increasing importance with the availability of precise orbit and clock information, for example from the International GNSS Service (IGS). Whereas PPP was limited in the past to post-processing due to the latency of the precise satellites ephemerides,...more >>

Article
CONGO: First GPS/GIOVE Tracking Network for Science, Research   September 1, 2009
By: André Hauschild,Oliver Montenbruck,Peter Steigenberger,Urs Hugentobler,Uwe Hessels

Selected results from the COoperative Network for GIOVE Observation (CONGO) demonstrate how the global network provides early familiarization with the new Galileo signals and access to precise GIOVE orbit and clock information, to develop new processing techniques for multi-constellation,...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 >>