Global Navigation Satellite Systems Engineering, Policy, and Design
Table 1Working Papers explore the technical and scientific themes that underpin GNSS programs and applications. This regular column is coordinated by Em. Univ.-Prof. Dr.-Ing. habil. Dr. h.c. Guenter W. Hein.
This is the first article in a series. For Part 2: Hybrid- and Non-GNSS Localization, see here.
By Günter W. Hein
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
1. ANTARCTIC OASIS
Antarctic Peninsula
SBAS illustration with the GNSS satellites (upper left) and the communications satellite (upper right).With the Australian government’s announcement earlier this month that it would invest $12 million in a two-year program looking into the future of positioning technology in Australia, comes plans for testing of satellite based augmentation systems (SBAS) to be undertaken, and for future applications for all four major modes of transport in Australia, as well as for potential safety, productivity, efficiency and environmental benefits.
By Inside GNSS
GNSS IC Vendor Competitive Assessment Vendor Matrix. Image Source: ABI Research.A new reports says that the GNSS market landscape is growing because of rapid growth of satellite technology-enabled wearables, unmanned aerial vehicles (UAVs), new innovation opportunities, and low-cost precision receivers.
ABI Research’s new GNSS integrated circuit (IC) vendor competitive analysis says that Broadcom and Qualcomm remain the two top companies for the fourth straight year.
By Inside GNSS
Topcon’s Intel Falcon 8+Topcon Positioning Group will distribute Intel Corporation’s Falcon 8+ System, a V-shaped, eight-rotor unmanned aerial system (UAS) in North American markets.
Announced at Intergeo 2016 in Hamburg, Germany, the Intel Falcon 8+ features triple-redundant AscTec Trinity autopilot capability and has full electronic system redundancy, the company said. It also includes the Intel Cockpit ground control and Powerpack smart battery system.
By Inside GNSS
Little Bourke Street, MelbourneThe 23rd world congress on intelligent transportation systems will take place at the Melbourne Convention and Exhibition Centre from October 10 through October 14, 2016. ITS Australia hosts this year’s event on behalf of ITS Asia Pacific, ITS America and ERTICO.
Melbourne is know for its intelligent transport system network that has become one of the best in the world. The conference organizers expect 7,000 international delegates and 300 exhibitors.
The them is "ITS-Enhancing Liveable Cities and Communities."
By Inside GNSS
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.
By Inside GNSS
Ubiquitous location-aware mobile devices, mainly GPS-enabled smartphones, have led to a boom in location-based services (LBS), which have been revolutionizing businesses and lifestyles. Common uses of LBSs include asset tracking, location-based advertising, emergency roadside service, turn-by-turn navigation, and real-time traffic & road information sharing.
By Inside GNSS
It is by now well known that GNSS-based localization in built-up urban environments can be extremely inaccurate. This is a fundamental problem that hardware enhancements cannot solve.
A GNSS receiver estimates 3D location and timing from pseudoranges from four or more satellites, assuming that these pseudoranges correspond to direct line-of-sight (LOS) paths from each satellite. In urban canyons, however, the signal from a satellite to the receiver suffers from multipath propagation and shadowing.
By Inside GNSS
Registration has opened for the 22nd World Congress and Exhibition on Intelligent Transport Systems and Services to be held in Bordeaux, France, on October 5–9, 2015.
By Inside GNSS
Francisco Rovira-Más, Agricultural Robotics Laboratory, Universidad Politécnica de ValenciaNow that we have had GNSS-driven precision in the fields for nearly 20 years, with widespread and growing acceptance by farm vehicle manufacturers and farmers, what lies ahead for precision agriculture?
By Inside GNSS
Q: Are there special considerations for dealing with raw GNSS data?
A: Most GNSS users are only interested in position, velocity, and/or time (PVT) information provided by a receiver. In fact, most mass-market GNSS receivers (e.g., those in cell phones or in your vehicle) only provide PVT information along with some supporting data (such as the number of satellites tracked, dilution of precision, course over ground, and so forth).
By Inside GNSS
