Combining Fiber Optics and Wideband Radio
A team of researchers has developed a system that uses White Rabit to achieve decimeter-level position accuracy in multipath environments.
SolarCleano, based in Garnich, Luxembourg, makes robots that clean large solar panel installations using GNSS receivers and corrections from Swift Navigation.
The European Space Agency (ESA) is issuing a call for ideas to overcome GNSS service gaps in urban […]
A Tidal ShiftTraditional tide gauges are in contact with the water surface and as a result are susceptible to measurement error and damage during extreme weather. An alternative approach is the use of GNSS reflectometry. We learn how this innovative use of satellite navigation signals works in this month’s Innovation column.
3D modeling solution creates true-to-life synthetic environments for more accurate testing. Spirent Communications plc has launched an innovative […]
A new receiver for GPS and other GNSS improves time-synchronization accuracy in areas with severe reception conditions, such […]
A real-time system combining a simulator and a GNSS propagation model reproduces an authentic multipath environment. The propagation model relies on a 3D-model reconstruction of the urban environment, which generates a multipath signature strictly dependent on the location of the receiver’s antenna. This yields important results for a moving vehicle, which may be affected by very different multipath conditions depending on trajectory and location.
Reflected BlessingsA technique developed by researchers at the University of Illinois at Urbana-Champaign distinguishes a reflected non-line-of-sight (NLOS) signal of a particular satellite from the LOS signal and characterizes the NLOS signal as coming from a virtual mirror-image satellite in the direction of the signal reflection point. By using information on the position and orientation of the reflector, the NLOS signal can be treated as an additional LOS signal.
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