Global Navigation Satellite Systems Engineering, Policy, and Design
[Updated November 17, 2012] Hemisphere GPS, the latest incarnation of a home-grown Canadian company, has announced plans to close its Calgary, Alberta, headquarters and exit the OEM GNSS business, and is currently seeking a buyer for its Precision Products and R&D assets.
By Inside GNSS
Digital Satellite Navigation and Geophysics: A Practical Guide with GNSS Signal Simulator and Receiver Laboratory
by Ivan G. Petrovski and Toshiaki Tsujii
Cambridge University Press 2012
ISBN-13: 9780521760546
This textbook describes GPS and GLONASS signals, as well as geophysical theory necessary for high accuracy calculation of satellite and user positions. The book is accompanied a free academic version of software for a software receiver and signal simulator.
By Inside GNSS
View the Equations for this article
Various designs of inertial/GNSS integrated navigation systems exist, with different architectures depending on the quality of sensors, the mission, the dynamics of the vehicle, and the non-linearity of the dynamics model, measurement model, or both.
By Inside GNSS
At the Intergeo conference in Hannover, Germany, today, NovAtel Inc. announced the addition of a new commercially exportable single-enclosure SPAN MEMS receiver to its line of SPAN GNSS/INS products.
By Inside GNSS
ION GNSS 2012 ienjoyed clear skies and warm temperatures at the Nashville Convention Center in Tennessee. The U.S. Institute of Navigation-sponsored venerable conference closed on Friday, September 21.
Thursday’s workshops featured expanded discussion on China’s Compass/Beidou-2 and Europe’s Galileo. Two more Beidou MEO satellites were launched during the conference for a total of 15. Meanwhile, Europe plans an October 10 launch that will bring the total to four. Speakers "guaranteed a 30 satellite constellation by 2020."
By Inside GNSS
Trimble Dimensions, the 2012 International User Conference, will take place at the Mirage Hotel in Las Vegas, Nevada from November 5 to 7.
Early-bird pricing has been extended to September 14.
The annual event targets surveying, engineering, construction, mapping, GIS, geospatial, infrastructure, utilities and field service management professionals who use positioning products developed and sold by Trimble companies. The companies include: Accubid, Applanix, Meridian Systems, OmniStar, Pacific Crest, PeopleNet, Plancal, QuickPen and Tekla.
By Inside GNSS
Beijing central business district ???????ICG-7 is scheduled for November 5-9 2012. It will be hosted by China and will take place at the Beijing International Convention Center (BICC) in the Asian Games Village section of the city. The chair of ICG-7 is Ran Chengqi, director general of the Chinese Satellite Navigation Office (CSNO).
El Centro Europeo de Astronomía Espacial (ESAC) Organized by the European Space Agency with the collaboration of a number of national space organizations, this intensive course will cover GNSS error sources related to radiowave propagation and interference effects.
It is aimed at engineers, geodesists, physicists and advanced students with appropriate degrees and a knowledge of GNSS fundamentals, statistics and signal processing.
By Inside GNSS
Marriott Waikiki BeachIt’s a big year for the Institute of Navigation, with the venerable ION GNSS 2012 happening this September in Nashville and the new and highly anticipated Pacific PNT conference opening for the first time next April in Honolulu.
ION GNSS 2012, the granddaddy of all GNSS events, begins shortly in Music City, USA: Nashville, Tennessee.
It’s scheduled during the third week of September at the downtown Nashville Convention Center, a five minute walk to the Country Music Hall of Fame and other attractions.
By Inside GNSS
NavtechGPS will host its 11th Annual Open Mic Night on Thursday, Sept. 20, 2012, from 8 p.m. to midnight during the ION GNSS 2012 conference at none other than the well-known Cannery Ballroom at the Mercy Lounge on Cannery Row. This musical evening will include performances by ION’s own Augmentations — complete with back-up singers, the Pseudorandom Noise, together with other talented folks from the conference. In addition to live music and a night of fun and Karaoke, five $100 cash prizes will be raffled off.
By Inside GNSS
Applanix POSTrack 310Applanix introduced a new position and orientation system and flight management system (FMS) for airborne mapping today (August 27, 2012) at the International Society of Photogrammetry and Remote Sensing (ISPRS) 2012 Conference in Melbourne, Australia.
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. PAPER CUTS
Washington, Oklahoma, Ohio, Georgia, Pennsylvania
√ State transportation departments in Georgia, Pennsylvania, Oklahoma, and Ohio are printing fewer state highway maps, says the Associated Press. Washington did away with them entirely. Blame it on the double whammy of public sector budget cuts and smartphone, handheld, and in-car GPS. But there are lots of holdouts. As one Indiana man said, without a paper map, “You’re beholden to the GPS lady, you know?”
