TAG: multi-GNSS receivers

Leica Releases Viva GNSS Unlimited Series

June 3, 2014By
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The Leica Viva GNSS Unlimited Series, available in August, will allow customers to make a safe investment with future-proof GNSS receivers and smart antennas, Leica Geosystems said in announcing the new series. With a flexible design, the Viva GNSS sensors can be upgraded for maximum performance whenever needed. The Leica Viva GNSS range fully supports the Chinese BeiDou navigation system.... read more

GNSS Manufacturing and Purchase Decisions Outlined in Thursday’s Webinar

June 3, 2014By
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The two GLONASS stumbles in May prompted industry leaders to again promote multi-GNSS user equipment and the development of of reliable back-up/redundant positioning, navigation, and timing (PNT) systems to cope with potential drop-outs of space-based services due to jamming, unintentional interference, spoofing, or other disruptions. But neither multi-GNSS nor back-up/alternative PNT fully exists at this time, effectively for all users.... read more

Interchangeability Accomplished

May 30, 2014By
vd_opener-O

Tri-Band Multi-Constellation GNSS in Smartphones and Tablets
In this look at a single-chip BeiDou/Galileo/GLONASS/GPS/QZSS/SBAS architecture for cell phones and tablets, the authors explain advantages of multiple constellations and examine details of system interchangeability, multi-system issues, and how assisted-GNSS data operates with all constellations. read more

How to Survive a Total Constellation Outage

April 3, 2014By
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Yesterday we posted news of an 11-hour downtime for the full GLONASS constellation, due to an upload of bad ephemerides. Coincidentally, during that 11-hour period, the mass-market chip company Broadcom was conducting multi-constellation receiver tests in Asia. Frank van Diggelen, Broadcom’s chief GNSS scientist and vice president says, “We have definitive data to show how a multi-constellation receiver survives such... read more

Pulling in All Signals

March 1, 2010By
Melgard-Open

Adding GLONASS to GPS gives a total of about 50 satellites, for a significant improvement in navigation availability, reliability, robustness, and convergence time through a new multi-GNSS precise point positioning (PPP) service. System performance and field results demonstrate that there is no need to await future constellations — better performance is available now. read more