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Compass/Beidou

Official: Foreign GNSS Signals Need FCC Authorization for Use in United States
December 16, 2014

Official: Foreign GNSS Signals Need FCC Authorization for Use in United States

Ronald Repasi, deputy chief of the FCC’s Office of Engineering and Technology, speaking at a 2012 hearing of House Energy & Commerce Subcommittee on Communications and Technology

A rule largely aimed at opening trade in telecommunication services will require Russia and other international providers of GNSS services to apply for authorization before their navigation signals can be legally used in the United States, a Federal Communications Commission (FCC) official has told GPS experts on the Space-based Positioning, Navigation, and Timing (PNT) Advisory Board.

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By Inside GNSS
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Intelligent Transportation Systems: 22nd ITS World Congress
December 2, 2014

Intelligent Transportation Systems: 22nd ITS World Congress

The Convention Centre Bordeaux

The 22nd World Congress and Exhibition on Intelligent Transport Systems and Services will be held at the Convention Centre Bordeaux and Exhibition Centre Bordeaux in Bordeaux, France on October 5 – 9, 2015. It will focus on how achieving intelligent mobility will change our lives, and the benefits space can bring to ITS applications.

The theme for this year’s event is “Towards Intelligent Mobility – Better Use of Space”, and will offer Plenary, Executive, Technical/Scientific, Special Interest and Interactive Sessions.

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By Inside GNSS
GNSS Hotspots | November 2014
November 23, 2014

GNSS Hotspots | November 2014

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. Tariffs
Beijing, China

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By Inside GNSS
Year 10
November 22, 2014

Year 10

Every so often, anthropologists — and maybe a few mathematicians — have a field day puzzling over the origins of our positional base-10 numeral system.

Oh, not the historical origins themselves, the Hindu-Arabic innovations beginning in the 5th and 6th centuries. That’s all pretty much agreed.

No, I’m referring to the possible physiological inspirations, the readily visible digits at the ends of our limbs: 10 fingers, 10 toes.

Coincidence? Does nature have coincidents, or does it abhor them like vacuums — o horror vacui?

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By Inside GNSS
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Evaluating the Performance of Navigation Payloads
November 17, 2014

Evaluating the Performance of Navigation Payloads

As a navigation satellite transmits multiple signals on single frequency (e.g., Open Service and Restricted Service over L5 Band), these are combined on a common carrier to comprise a composite signal. This composite signal passes through navigation payload subsystems such as an up-converter, traveling wave tube amplifier (TWTA), filters, and so on. These subsystems may introduce adverse effects on the signal, such as amplitude and phase distortion, nonlinear effects, gain imbalance, IQ imbalance, and phase noise.

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By Inside GNSS
Higher Aspirations for GNSS

Higher Aspirations for GNSS

GPS Space Service Volume (SSV) Requirements/Performance Parameters

New space missions such as the robotic repair and recovery of damaged or errant communication satellites may become possible with the aid of an emerging class of receivers that is able to use GPS signals for navigation in orbits thousands of kilometers above the middle Earth orbit (MEO) GPS constellation itself.

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By Dee Ann Divis
Topcon Engineers Track New GLONASS Signal
November 14, 2014

Topcon Engineers Track New GLONASS Signal

Implementation of code-Phase structures for GLONASS signals ?/?, L2C and L3

Topcon Positioning Group has announced that its latest GNSS reference receiver has tracked a new signal from the GLONASS constellation.

The GLONASS-M 55 satellite was launched in June and is equipped
with an experimental payload capable of transmitting CDMA signals in the
Russian GNSS system’s L3 frequency band centered at 1202.025 MHz. According to the company, Topcon engineers successfully tracked the signal using the NET-G5
receiver during a series of recent tests at the Topcon Technology Center
in Moscow, Russia.

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By Inside GNSS
Airbus GNSS Engineers Win Top ESNC 2014 Prize

Airbus GNSS Engineers Win Top ESNC 2014 Prize

The European Satellite Navigation Competition (ESNC) has gone Big Time.

Unlike past years, when product designers and engineers from small- and medium-sized enterprises (SME) have walked away with the top prize, this year’s overall winner was Airbus Defence & Space (Airbus DS GmbH), a division of the Airbus Group (formerly EADS). Headquartered in France and generating annual revenues of €14 billion, Airbus DS was established last year by the merger of the parent company’s Airbus Military, Astrium, and Cassidian units.

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By Inside GNSS
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