Global Navigation Satellite Systems Engineering, Policy, and Design
The UK seems well and truly on the path to leaving the European Union. The implications for the Galileo program are still unclear, and won’t be known until Brexit negotiations are completed, at the earliest.
By Peter Gutierrez
All applications of satellite navigation show a strong growth. They can now rely on four global systems (GPS, GLONASS, Galileo and BeiDou) and additional regional systems, sometimes aiming for future global extension (QZSS, NavIC). All these systems and their applications rely on very limited satellite orbit spectrum. This article is providing background and insights on the growing pressure on this limited resource, giving rise to proposals for “sharing” spectrum. How satellite navigation will survive and find the necessary spectrum resources to grow is reviewed in details in the following paragraphs.
By Ingo Baumann
The maritime sector drives the global economy, with ships transporting more than 80% of world trade. Ships and ports have come to rely on global navigation satellite systems (GNSS) for a huge array of applications relating to position, velocity and precise universal and local time.
By Ingo Baumann
Figures 1 – 4Working Papers explore the technical and scientific themes that underpin GNSS programs and applications. This regular column is coordinated by Prof. Dr.-Ing. Günter Hein, head of Europe’s Galileo Operations and Evolution.
By Günter W. Hein
European Union (EU) member countries are close to adopting a standard for satellite navigation receivers.
The proposed standard covers Satellite Earth Stations and Systems (SESS) as well as GNSS receivers operating in the bands 1164 MHz to 1300 MHz and 1559 MHz to 1610 MHz. Receivers must be able to withstand interference from adjacent bands at the listed levels.
By Dee Ann Divis
Q: Would you prefer to have more signals or more satellites?
A: This is somewhat of a classic GNSS question, but before getting to the answer, let’s seek some clarity about what is being asked. First, by definition, “more” signals or “more” systems must be referenced against some baseline configuration. This is commonly assumed to be a GPS L1 C/A solution, and this assumption is also used herein.
By Inside GNSS
The Federal Communications Commission is being asked to choose between the immediate benefits of officially improving U.S. satellite navigation receivers and the possibility that, in doing so, it may raise interference levels in a neighboring band or make it harder to develop alternative uses for those adjacent frequencies.
By Dee Ann Divis
Managing editor Stan GoffStan Goff, a seasoned writer and editor for a variety of professional magazines, has joined Inside GNSS as managing editor. He will be responsible for day-to-day operations and production of the print publication and insidegnss.com.
He will work with founding editor Glen Gibbons.
Goff lives and works in the Chicago area, where he spent 17 years as a senior editor and executive editor for Advanstar Communications business to business magazines. Earlier, he was a sports editor for Sun Publications.
By Inside GNSS
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. BREXIT
Harwell Didcot, United Kingdom
Kevin Dennehy with Gen. Peter Pace, former head of the Joint Chiefs of Staff, at an Association for Public-Safety Communications Officials (APCO) conference.Kevin Dennehy, a seasoned GNSS industry conference developer, columnist and writer and a retired Army National Guard officer, has joined Inside GNSS. As managing editor, he will be responsible for reporting online about the GNSS industry and working with Editor and Publisher Glen Gibbons on the print edition.
Contact him with company news and new product announcements at <kevin@insidegnss.com>.
By Inside GNSS
Some of the specific technical issues behind the latest delay for Galileo’s first full operational capability (FOC) satellites have already been reported. The story, as it is told, generally starts with a late navigation payload delivery by British firm Surrey Satellite Technology to the German prime contractor, OHB. Next, OHB ran into issues with the payload and the platform, further stretching out the timeline.
By Peter Gutierrez
