A: System Categories

NovAtel Expands Pinwheel Antenna Product Line

NovAtel Expands Pinwheel Antenna Product Line

NovAtel GPS-702-GG-HV

NovAtel Inc. has introduced the GPS-702-GG-HV to its line of high-performance Pinwheel antennas. Tracking L1/L2 GPS and L1/L2 GLONASS frequencies, customers can use the same antenna for GPS-only or dual-constellation applications, reducing equipment costs and need for future redesign. With the same form factor and choke ring performance as the company’s other Pinwheel antennas, the GPS-702-GG-HV has been enhanced to provide the robustness needed for use under high vibration conditions.

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By Inside GNSS
Topcon Launches Two UAS Mapping Systems

Topcon Launches Two UAS Mapping Systems

Topcon Positioning Group has released two unmanned aerial systems (UAS) for mapping — the Sirius Pro and Sirius Basic.  Both systems are designed to produce accurate solutions for the automated mapping of a wide range of sites — regardless of terrain — including construction sites, mines and quarries, and for use in land surveying, power line and pipeline inspection as well as precision agriculture field mapping.

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By Inside GNSS
Falling Prices Will Spur Innovation, Competition in High-Precision GNSS Market
September 18, 2014

Falling Prices Will Spur Innovation, Competition in High-Precision GNSS Market

The high-precision GNSS industry should expect to see industry consolidation and a scramble for new markets and innovations as prices for high-end chips and modules continue to slide, experts told attendees at a ION GNSS+ panel discussion in Tampa, Florida, last week (September 11, 2014).

The falling prices could strain R&D budgets, they noted, but could also create opportunity as high-end receivers come within reach of emerging industries like self-driving cars, unmanned aerial vehicles, and are even incorporated into consumer products.

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By Inside GNSS
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Alison Brown: Tally Ho! The Hunt for GNSS Innovations
September 17, 2014

Alison Brown: Tally Ho! The Hunt for GNSS Innovations

In 2005, Alison Brown was the first Sidney Sussex College woman alumna to be named as an honorary Fellow in recognition of her distinguished technical contributions. Pictured here with Keith Glover, now head of engineering at Cambridge University, who taught Brown control systems engineering, and Donald Green, her director of studies while she was an undergraduate.

SIDEBAR: Alison Brown’s Compass Points

On display in the Smithsonian’s “Time and Navigation” exhibit in Washington D.C. is the world’s first GPS-enabled cell phone. It was developed in 1995 by NAVSYS Corporation, a Colorado GNSS and inertial R& D company, as part of the push to build a national emergency notification system for mobile users, E911.

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By Inside GNSS
SAGAIE

SAGAIE

Scintillation — rapid RF signal frequency and amplitude changes due to signal propagation path changes and phase shifting caused by solar turbulence in the ionosphere — is well known in the GNSS community. However, conclusive scientific studies that cover the whole extent of the question are hard to find. Galileo In-Orbit Validation Experiment (GIOVE) data processing confirmed the effects of scintillation on GNSS receivers, as described in the paper by J. Giraud listed in the Additional Resources section near the end of this article.

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By Inside GNSS
Fourth International School on Satellite Navigation

Fourth International School on Satellite Navigation

The 4th International School on Satellite Navigation is underway in the GLONASS Learning Centre in Moscow, Russia. The school runs through September 24

The event is organized by Roscosmos and JSC Russian Space Systems.

Lectures and hands-on studies cover the history, current status and future of the GNSSes, particularly the use of GLONASS in the Russian economy. It includes two series of lectures and practical exercises of 36 hours each. The first covers satellite navigation and the second the combined use of Earth Remote Sensing and GNSS data.

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By Inside GNSS
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Harold Martin Returns to PNT NCO as Director
September 16, 2014

Harold Martin Returns to PNT NCO as Director

Harold “Stormy” Martin

Harold W. "Stormy" Martin III will be the new director of the National Coordination Office (NCO) for Space-Based Positioning, Navigation, and Timing (PNT), the focal point for federal agencies working out GPS policy issues.

Martin was the deputy director of the NCO and an Air Force colonel until this summer when he retired from the military. He will succeed Jan Brecht-Clark, who retired at the end of 2013. His start date as director has not been set.

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By Inside GNSS
ESA Outlines Efforts to Rescue Wayward Galileo Satellites

ESA Outlines Efforts to Rescue Wayward Galileo Satellites

Orbits of the fifth and sixth Galileo satellites launched together on August 22, 2014, in red, compared to their intended position, in dashed green, and the position of the four IOV satellites launched in 2011 and 2012 in solid green. This view looks down over Earth’s South Pole, helping to illustrate how the two satellites’ orbital inclination relative to the equator is less than was intended ESA illustration.

The European Space Agency (ESA) released dramatic illustrations today (September 16, 2014) of the orbital locations of the two errant Galileo spacecraft launched on August 22, the intended orbit, and the locations of four In-Orbit Validation (IOV) satellites.

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By Inside GNSS
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