GPS

New Navigator Seminar
June 8, 2012

New Navigator Seminar

The Royal Institute of Navigation will hold a new navigator seminar and networking opportunity at the University of Nottingham on June 14, 2012 for new navigators, engineers, scientists and surveyors who are seeking careers in the industry.

Masters and doctoral level students will present on navigation and positioning topics, advanced undergraduates and postdocs will be in attendance. A number of industry and government representatives will exhibit or attend to listen to new research and meet the new talent.

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By Inside GNSS
Air Force Awards Service Support Contract for GPS III SVs

Air Force Awards Service Support Contract for GPS III SVs

The U.S. Air Force has awarded Lockheed Martin a $68 million contract to provide mission readiness, launch, early orbit checkout, and on-orbit operations engineering support for the first two GPS III space vehicles.

Under the contract, Lockheed Martin will provide technical support to the Air Force’s 2nd Space Operations Squadron (2SOPS) and monitor the health and performance of the first two GPS III satellites from launch through their 15-year operational design lives.

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By Inside GNSS
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Thales Plans Next Steps in GNSS Technology Evolution

Thales Plans Next Steps in GNSS Technology Evolution

French manufacturer Thales, the only non-U.S. company to offer GPS SAASM (Selective Availability Anti-Spoofing Module) receivers, is working on next-generation receivers for commercial aviation and military markets that will incorporate new signals and multiple GNSS systems.

Since the late 1990s, the company has delivered between 8,000 and 10,000 avionics installations in military and civil domains, according to Pierre Bouniol, GNSS Products Department manager, including multi-mode GPS receivers in stand-alone and enclosure configurations.

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By Inside GNSS
NovAtel, Interstate Electronics Team on SAASM RTK Receiver Board

NovAtel, Interstate Electronics Team on SAASM RTK Receiver Board

NovAtel Inc. today (May 30, 2012) announced the development of their OEM625S Selective Availability/Anti-Spoofing Module (SAASM) GNSS receiver, the first product emerging from a collaborative effort with L-3 Interstate Electronics Corporation (IEC).

The OEM625S, which becomes available for purchase in the third quarter of this year, will combine a commercial dual-frequency NovAtel GNSS receiver with an L-3 IEC XFACTOR SAASM in a single card solution, reducing overall size and power requirements for end customer applications.

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By Inside GNSS
IP Rights and Wrongs
May 27, 2012

IP Rights and Wrongs

As Desi Arnaz often said to Lucille Ball during an “I Love Lucy” episode on TV, “You’ve got some ’splaining to do.”

I refer, of course, to the untoward and unexpected initiative by the British Ministry of Defense (MoD) to patent the technical innovations that underlie the planned next generation of civil GNSS signals.

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By Dee Ann Divis
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Stanford and Aalborg Announce Summer Workshop on GNSS Positioning for the Future
May 26, 2012

Stanford and Aalborg Announce Summer Workshop on GNSS Positioning for the Future

A number of GNSS experts from the United States, Denmark, Norway and China will lead a weeklong workshop on the future of satellite-based positioning technologies from August 27 through September 2 at the Slettestrand Holiday Center in North Jutland, Denmark.

The topics range from GNSS basics and Intelligent Transportation Systems to new GNSSes, new receivers and indoor navigation as well as environmental monitoring and arctic navigation. The event is organized by Stanford and Aalborg universities.

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By Inside GNSS
How do GNSS-derived heights differ from other height systems?
May 24, 2012

How do GNSS-derived heights differ from other height systems?

Q: How do GNSS-derived heights differ from other height systems?

A: Height estimation using GNSS always seems to be trickier than horizontal coordinate estimation.

Why?

On the one hand, the GNSS technique has error sources that are more critical in the vertical direction. Height estimates are weaker because of a combination of satellite geometry, the presence of strong correlations to other parameters, such as atmospheric delays, and the antenna phase center model applied during data analysis.

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By Inside GNSS
GPS Receiver Specifications

GPS Receiver Specifications

An increasingly urgent call to certify performance of Global Positioning System (GPS) receivers is being heard from several sectors of the national political and business landscape. This issue has arisen now as a direct result of the LightSquared initiative that has generated so much attention over the last 18 months.

Instead of diving into those issues directly, however, a little historical perspective is in order first — and it’s amazing in itself that a technology as new as GPS in the public eye would actually have a history to reflect upon, but it does.

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By Inside GNSS
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