May 29, 2017 - June 2, 2017
November 16, 2016
The National Oceanic and Atmospheric Administration (NOAA) will purchase data from small commercial satellites to expand its GNSS radio occultation (RO) efforts to better predict weather.
In September NOAA, through the government's Commercial Weather Data Pilot program, awarded contracts to San Francisco, California-based Spire Global ($370,000) and GeoOptics ($695,000), of Pasadena, California, to provide RO data. This data will be used to assess whether commercially provided information can be incorporated into the agency's weather models.
July 9, 2017 - July 13, 2017
Ventures • November 15, 2016
NovAtel Inc. announced today (November 15, 2016) that it has entered into an agreement with two educational institutions to fund leading-edge research to determine how GNSS technology can deliver a positioning solution that meets both the safety and accuracy requirements of unmanned automotive vehicles.
September 25, 2017 - September 29, 2017
May 7, 2017 - May 9, 2017
Working Papers • November/December 2016
Working Papers explore the technical and scientific themes that underpin GNSS programs and applications. This regular column is coordinated by Prof. Dr.-Ing. Günter Hein, head of Europe's Galileo Operations and Evolution.
GNSS Solutions • November/December 2016
Q: What are the challenges of ray-tracing for GNSS applications?
A: Simulating the propagation and reception of GNSS signals in complex environments is a challenging task. Indeed, the user always has to trade off between the computation time and the reliability of the output. Moreover, the motion of GNSS satellites, atmospheric effects, and building geometry are always difficult to model.
Inside GNSS • November/December 2016
Spacecraft in low Earth orbit (LEO), at altitudes below 3,000 kilometers, remain within the main Global Positioning System (GPS) signals’ Earth coverage. Spacecraft employing GPS at these altitudes enjoy signal availability and navigation and timing performance emulating that of terrestrial users.
March 14, 2017 - March 16, 2017