A: System Categories

Air Force Proposes Dramatic Redesign for GPS Constellation
June 4, 2013

Air Force Proposes Dramatic Redesign for GPS Constellation

[Updated June 3, 2013] With the budget vise tightening, top Pentagon managers are readying some potentially dramatic changes to the GPS constellation — changes that promise to lower both the cost of the satellites and the expense of putting them into orbit.  

The first changes would be subtle and are linked to buying the next block of GPS III satellites — a decision that sources confirm will be made by the end of September.  

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By Dee Ann Divis
Tajani, des Doride & panel_web.jpg
May 31, 2013

Europe’s GNSS Program: Interview with European Commission Vice-President Antonio Tajani

A former officer in the Italian Air Force, Antonio Tajani has been vice-president of the European Commission (EC) since May 2008. Tajani is, however, also the current European Commissioner for Industry and Entrepreneurship, which makes him top man at the European Union (EU) directorate-general that oversees the Europoean GNSS programs, particularly Galileo and the European Geostationary Navigation Overlay Service (EGNOS).

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By Inside GNSS
GNSS Hotspots | May 2013
May 28, 2013

GNSS Hotspots | May 2013

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. PESTS

State of California, USA
√ The California Agriculture department is using collective intelligence and GPS to “report a pest.” State residents can download the new CDFA smartphone app and use it to photograph and report bad bugs when they see ‘em. Those with iPhones can choose to send GPS coordinates for quick response to invasive pest emergencies.

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By Inside GNSS
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BeiDou Gets Ready for the Global Marketplace

BeiDou Gets Ready for the Global Marketplace

The fourth China Satellite Navigation Conference (CSNC 2013) wound up its three-day run on May 17 in Wuhan — by all measures a clear success for an event that has become the nation’s leading international GNSS forum.  

A key take-away from the event: China is rapidly preparing to bring BeiDou products and technology into the international marketplace is encouraging its industry to build an internationally applicable knowledge base in standards, patent law, and intellectual property rights (IPR).  

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By Inside GNSS
BeiDou

BeiDou

Prof. Jingnan Liu, Chinese Academy of Engineering

Since announcing plans in late 2006 to build its own GNSS system — BeiDou-2 (BDS), China proceeded quickly to establish a fully operational regional system late last year with a clear plan to complete a global system by 2020.

Beginning with its first launch in April 2007, BDS has put 16 satellites in orbit, some in dual launches, with 14 BeiDou space vehicles currently transmitting healthy signals: 5 in geostationary orbits (GEO), 5 in inclined geosynchronous orbits (IGSO), and 4 middle Earth orbit (MEO) spacecraft.

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By Inside GNSS
Di Qiu: Opportunities of Signals

Di Qiu: Opportunities of Signals

Di Qiu at the site of her current employer

SIDEBAR: Di Qiu’s Compass Points

Landing all-weather aircraft safely in storms. Protecting sensitive data not only through encryption but based on the location at which it is being accessed. Ensuring that accurate and timely information reaches first responders responding to emergencies. 

Although still in the early part of her career, Di Qiu has already made significant contributions to these crucial applications of navigation technology. 

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By Inside GNSS
Europe Needs Entrepreneurs
May 23, 2013

Europe Needs Entrepreneurs

Honestly, one gets the feeling that the European navigation community has finally had enough of talking and is ready to take Galileo out of the hands of politicians and put it into the hands of users, including businesses that can translate European GNSS into real products and services to be bought and sold.  

The feeling has certainly been growing within the European navigation community, as evidenced by the conversations at the recent European Navigation Conference (ENC) in Vienna.  

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By Peter Gutierrez
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Calculating Time Offsets

Calculating Time Offsets

Q: How do you deal with timing differences between GNSSs? 

A: All GNSSs inherently depend on precise timekeeping to measure the satellite/receiver time of flight of signal propagation with sufficient accuracy to compute ranges/distances for multilateration calculations. Each GNSS ground segment therefore dedicates considerable effort to maintaining a highly stable atomic time scale as well as the corresponding offset to global standards such as UTC (Coordinated Universal Time).

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By Inside GNSS
June 18 Webinar: GNSS /INS Integration Applications
May 22, 2013

June 18 Webinar: GNSS /INS Integration Applications

Inside GNSS will host an applications-oriented web seminar on GNSS and inertial integrated systems on Tuesday, June 18.

The free event is sponsored by KVH Industries.

Webinar presenters are Xavier Orr, an R&D engineer of 3D navigation technologies at Advanced Navigation in Australia and Andrey Soloviev, principal at Qunav LLC and a research engineer who focuses on multi-sensor integration for navigation applications.

GNSS Solutions editor and University of Calgary professor Mark Petovello moderates.

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By Inside GNSS
PTTI 2013: Precise Time and Time Interval Systems and Applications Meeting
May 21, 2013

PTTI 2013: Precise Time and Time Interval Systems and Applications Meeting

Major changes for the annual PTTI meeting this year – it will be held on the West Coast, in the high-tech concentration of Seattle’s east side and it has come under the wing of the Institute of Navigation, the new organizer of the event.

PTTI 2013, the 45th systems and applications meeting for Precise Time and Time Interval managers, system engineers and program planners, will be held at the Hyatt Regency Bellevue on December 2 through 5.

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By Inside GNSS
GPS Civil Funding Request Slashed
May 20, 2013

GPS Civil Funding Request Slashed

Jan Brecht-Clark, director, National Coordination Office for Space-Based Positioning, Navigation, and Timing

With just more than four months to go in the 2013 fiscal year, sequestration and furloughs are taking a bite out of key research and the work of the National Coordination Office (NCO) for Space-Based Positioning, Navigation, and Timing (PNT) — the government nexus for GPS-related policy matters.

The NCO is an interagency organization, explained its director, Jan Brecht-Clark in an emailed response; so, “each individual staff member is subject to furloughs implemented by their home agency as a result of sequestration.”

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By Inside GNSS
GENIUS Workshop: GNSS Principles and Differential GNSS

GENIUS Workshop: GNSS Principles and Differential GNSS

The November entry in this EU-sponsored series of free GNSS training workshops concerns GNSS Principles and Differential GNSS. It will take place at the University Politecnica de Catalunya (UPC) in Castelldefels, Spain on October 19, 20 and 21.

The instructors will be Fabio Dovis, Politecnico di Torino, Italy, and Carl Milner, Ecole Nationale Aviation Civile, France.

The topics:
GPS principles
GPS Signal Structure
GPS Propagation Channel
GPS Signal Processing
Single Point Positioning and Error Budget

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By Inside GNSS
China Conference Highlights Plans for BeiDou in International Marketplace

China Conference Highlights Plans for BeiDou in International Marketplace

The fourth China Satellite Navigation Conference (CSNC 2013) wound up its three-day run on Friday (May 17, 2013) in Wuhan — by most measures a clear success for an event that has become the nation’s leading GNSS forum.

Well more than 2,000 attendees had their choice of 627 technical papers spread across a broad array of topics in 12 session tracks under the conference theme: BeiDou Application — Opportunities and Challenges.”

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By Inside GNSS
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