Global Navigation Satellite Systems Engineering, Policy, and Design
The Institute of Navigation’s 2015 International Technical Meeting will take place January 26-28 at the Laguna Cliffs Marriott Hotel in Dana Point California.
Online registration is available. Discounted Registration and hotel reservations end January 5.
By Inside GNSS
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 TechnologyA 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.
By Inside GNSS
The Convention Centre BordeauxThe 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.
By Inside GNSS
The 9th annual conference on the Croatian Adriatic aims at GNSS experts and focuses on GNSS resilience and GNSS applications development. It will take place at Baška on the resort island of Krk in Croatia from May 10 – 12, 2015.
The deadline for abstracts is January 20, 2015.
Registration information can be found on the RIN website.
Topics include:
By Inside GNSS
GLONASS-K1 at ISS-ReshetnevRussia launched the second and final GLONASS-K1 flight-test satellite on Sunday (November 30, 2014) from the Plesetsk cosmodrome on board a Soyuz 2-1B rocket.
Built by ISS-Reshetnev, the satellite broadcasts five navigation signals in three frequency bands – L1, L2 and L3. A civil CDMA signal is among those to be transmitted in the L3 band. The spacecraft also carries new equipment to support the international search and rescue system COSPAS-SARSAT: a payload that can relay signals from users in distress.
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. Tariffs
Beijing, China
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?
By Inside GNSS
Moscone CenterThe 47th American Geophysical Union Fall Meeting will take place from December 15-19, 2014 at the Moscone Center in San Francisco, California, U.S.A.
Registration information can be found here.
By Inside GNSS
Cospas–Sarsat’s extension to MEOSAR (Medium Earth Orbit Search and Rescue) will extend its search and rescue coverage (the area outlined in red). On the ground the Galileo programme is contributing a Toulouse-based test bench, and a networked trio of MEOSAR ground stations – known as Local User Terminals (LUTs) – to cover Europe, based in Svalbard in the Norwegian Arctic, Cyprus and the Canary Islands. Existing LUTs are distributed on a per country basis, but it is an advantage of MEOSAR that fewer ground stations will be needed for greater coverage. Cospas-Sarsat illustration The European Space Agency (ESA) has announced completion of tests that indicate the readiness of the European component of a modernized, GNSS satellite–aided search and rescue service known as Cospas-Sarsat.
ESA has completed construction and testing of a trio of located on three islands at the far corners of the continent, ready to pick up distress calls via satellite from across Europe and its surrounding waters.
By Inside GNSS
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.
By Inside GNSS
GPS Space Service Volume (SSV) Requirements/Performance ParametersNew 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.
By Dee Ann Divis
Russia’s involvement in the Ukraine crisis has turned much of public opinion in the West against that country, in particular souring the relationship between the European Union (EU) and Russia. And, while the ceasefire signed in September technically is still in force, the EU-Russia rift is far from smoothed over.
By Peter Gutierrez
Implementation of code-Phase structures for GLONASS signals ?/?, L2C and L3Topcon 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.
