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GNSS (all systems)

Department of Transportation Calls for More Testing of GPS/GNSS Receivers for Adjacent Band Compatibility
July 8, 2016

Department of Transportation Calls for More Testing of GPS/GNSS Receivers for Adjacent Band Compatibility

DoT Assistant Secretary for Research and Technology Gregory Winfree

A Federal Register notice published on July 7, 2016 announced Department of Transportation (DoT) plans to conduct additional testing of GPS/GNSS receivers this month as part of  their Adjacent Band Compatibility (ABC) Study. The notice was issued by DoT Assistant Secretary for Research and Technology Gregory Winfree.

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By Inside GNSS
2016 PNT Symposium at Stanford

2016 PNT Symposium at Stanford

The Stanford Center for Positioning, Navigation and Timing and the Marconi Society jointly sponsor the 10th Annual PNT Symposium at Stanford on November 1, 2 and 3. It will take place at the Kavli and Panofsky Auditoriums at the Stanford National Accelerator Laboratory in Menlo Park.

A highlight of this year’s event is the awarding of the Marconi Prize to Brad Parkinson, Stanford professor emeritus, for his contributions to the development of GPS.

Attendance is by invitation.

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By Inside GNSS
Spirent Announces New GNSS Simulator
July 6, 2016

Spirent Announces New GNSS Simulator

GSS7000

Spirent Communications has launched the GSS7000 series of multi-frequency, multi-GNSS RF constellation simulators.

The GSS7000 series emulates all civil GNSS systems and regional augmentation systems, and allows devices to be tested under a multitude of operating environments and error conditions. According to Spirent, the GSS7000 has the flexibility to reconfigure satellite constellations, channels and frequencies between test runs or test cases. Four software control variants are offered: SimTEST, SimREPLAY, SimREPLAYplus, and SimGEN.

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By Inside GNSS
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New Royal Institute of Navigation Honors for Terry Moore

New Royal Institute of Navigation Honors for Terry Moore

University of Nottingham Professor Terry Moore

Terry Moore, director of the Nottingham Geospatial Institute (NGI) at the University of Nottingham, will receive the J. E. D. Williams Medal on July 19 for his significant and varied contributions to the Royal Institute of Navigation (UK), in particular his leading role in staging its major conferences.

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By Inside GNSS
The International GNSS Monitoring and Assessment Service
July 5, 2016

The International GNSS Monitoring and Assessment Service

Contemporary times have seen an increase in the number of navigation satellites across various geographical regions. In order to ensure that all these satellite systems work together to optimize the positioning, navigation, and timing (PNT) of users on or near the Earth’s surface there is need for inter-cooperation and inter-operability of the systems.

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By Inside GNSS
Trimble Dimensions 2016
June 15, 2016

Trimble Dimensions 2016

The 2016 Trimble Dimensions user conference and exhibition will take place at the Venetian Hotel in Las Vegas on November 7, 8 and 9.

The annual event gathers users of Trimble’s products including positioning technology for unmanned systems as well as mapping, GIS, surveying, photgrammetry and remote sensing and other technologies of interest to readers of Inside GNSS.

Four hundred and fifty technical sessions and networking events give attendees an opportunity to network widely within and among industry groups.

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By Inside GNSS
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GNSS Hotspots | May 2019
May 29, 2016

GNSS Hotspots | May 2019

One of 12 magnetograms recorded at Greenwich Observatory during the Great Geomagnetic Storm of 1859
1996 soccer game in the Midwest, (Rick Dikeman image)
Nouméa ground station after the flood
A pencil and a coffee cup show the size of NASA’s teeny tiny PhoneSat
Bonus Hotspot: Naro Tartaruga AUV
Pacific lamprey spawning (photo by Jeremy Monroe, Fresh Waters Illustrated)
“Return of the Bucentaurn to the Molo on Ascension Day”, by (Giovanni Antonio Canal) Canaletto
The U.S. Naval Observatory Alternate Master Clock at 2nd Space Operations Squadron, Schriever AFB in Colorado. This photo was taken in January, 2006 during the addition of a leap second. The USNO master clocks control GPS timing. They are accurate to within one second every 20 million years (Satellites are so picky! Humans, on the other hand, just want to know if we’re too late for lunch) USAF photo by A1C Jason Ridder.
Detail of Compass/ BeiDou2 system diagram
Hotspot 6: Beluga A300 600ST

Electronic Throwaways, Space X Wins, Drones at Sea and Shaking It Up

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By Inside GNSS
GNSS Antennas with Dr. Inder Gupta

GNSS Antennas with Dr. Inder Gupta

Dr. Inder Gupta, The Ohio State University
Chris Bartone, Ohio University

GNSS receivers seem to get all the attention. Go to any technical GNSS conference and the lion’s share of presentations are about receiver design and techniques: better algorithms, signal processing, integration with other sensors, spoofing detection, and on and on.

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By Inside GNSS
2016 ITS & LBS China Expo
May 26, 2016

2016 ITS & LBS China Expo

A view of the Shenzhen Convention and Exhibition Center

The 5th International Intelligent Transportation System and Location-based Services expo will take place in Shenzhen (深圳), China on June 17, 18 and 19, 2016. It will take place in Hall 9 of the Shenzhen Convention and Exhibition Center in the city center.

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By Inside GNSS
RIN INC 2016: Royal Institute of Navigation International Navigation Conference
May 24, 2016

RIN INC 2016: Royal Institute of Navigation International Navigation Conference

Main auditorium, Strathclyde Conference Centre

The Royal Institute of Navigation’s International Navigation Conference 2016 will be held at the University of Strathclyde Conference Centre in Glasgow, Scotland from November 8 – 10, 2016.

A number of keynote speakers will discuss topics from Virgin Galactic’s voyage to space to quantum sensors for inertial navigation to autonomous cars, android phones, train control and even "Three dimensional thinking: from rats to humans, via Klingons."

Poster and demonstration abstracts are due by May 30. Full paper submission is due on June 15. 

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By Inside GNSS
Navitec 2016

Navitec 2016

ESTEC interior

NAVITEC is an annual navigation conference hosted by the European Space Agency (ESA). This year’s event will take place at ESA’s Space Research and Technology Center (ESTEC) in Noordwijk, Netherlands on December 14, 15 and 16, 2016. The theme is "Navigating the Future of Transportation."

The scope of the workshop includes navigation equipment and techniques, including receivers, payloads, signals, navigation algorithms, signal processing techniques and terrestrial and space GNSS applications.

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By Inside GNSS
mayjune16-TETEWSKY-500px.jpg
May 19, 2016

Inter-Signal Correction Sensitivity Analysis

Symbols and Acronyms

Modernized GPS satellites give civil users the ability to achieve dual L1/L2 PY accuracy using dual L1CA/L2C ionosphere-free measurements and, with IIF satellites, dual L1/L5 signals. Because broadcast GPS ephemeris data is based on an ionosphere-free pseudorange calculated from dual L1PY/L2PY measurements and the civil signals are not all perfectly aligned to it, new broadcast parameters and a new modernized dual-frequency algorithm are needed in order to align new signals with the dual L1/L2 PY signal.

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By Inside GNSS
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