GPS

U.S. Eases Export Regulations for GPS Receivers
May 30, 2014

U.S. Eases Export Regulations for GPS Receivers

Eric L. Hirschhorn, Department of Commerce under secretary for industry and security

The U.S. government is set to ease its export rules for space-related and high-speed GPS receivers, moving many such devices out from under the stricter control of the State Department to the portfolio regulated by the Commerce Department, which already oversees the export of civil GPS receivers.

“It’s definitely a move in the right direction,” said one GPS expert.

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By Inside GNSS
GPS IRT Shuffled, Shrunk in Budget Squeeze

GPS IRT Shuffled, Shrunk in Budget Squeeze

Maj. Gen. (ret.) Robert A. Rosenberg, former GPS IRT chair

The GPS Independent Review Team (IRT), a key player in GPS policy for nearly 20 years, has been disbanded by the Air Force in what several sources say is an effort to save money.

Created in 1997 for a temporary three-month assignment, the IRT has been instrumental in shaping the current GPS constellation including designing military’s M-code — giving the signal its distinctive two humps — and pushing to get that signal into the constellation earlier than initially planned.

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By Inside GNSS
Trimble Announces Integrated Multi-Constellation GNSS, UHF Module for RTK Apps
May 27, 2014

Trimble Announces Integrated Multi-Constellation GNSS, UHF Module for RTK Apps

Trimble BD930-UHF

Trimble has introduced its new BD930-UHF receiver and communication module, combining a triple-frequency GPS/GLONASS/BeiDou/Galileo receiver with an integrated UHF module.
 
Part of Trimble’s GNSS OEM portfolio, the new compact module features centimeter-level, real-time kinematic (RTK) positioning capabilities, according to the company. By integrating wireless communications on the same module, the BD930-UHF module is designed to significantly simplify the reception of RTK corrections.
 

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By Inside GNSS
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2015 IAIN World Congress
May 22, 2014

2015 IAIN World Congress

The 2015 World Congress of the International Association of Institutes of Navigation will take place at a new venue, the Corinthia Hotel, close to the well-preserved historical center of Prague, Czech Republic, on October 20 – 23, 2015. This will be the 15th meeting of all of the member organzations, who will discuss the science and practice of navigation and related technologies.

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By Inside GNSS
China Plans to Complete BeiDou Ahead of Schedule
May 21, 2014

China Plans to Complete BeiDou Ahead of Schedule

China’s BeiDou will accelerate the pace of its development, even as the world’s other three GNSS systems are experiencing delays and difficulties, according to speakers in the opening session of the China Satellite Navigation Conference (CSNC 2014) today (May 21) in Nanjing.

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By Inside GNSS
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Flawed GPS Signal Processing Design Cited as Cause of Receiver Problems

Flawed GPS Signal Processing Design Cited as Cause of Receiver Problems

Widespread reports of intermittent GPS receiver outages may well end this week as the U.S. Air Force wraps up an “extended navigation mode” functional checkout of a GPS satellite, designated Space Vehicle Number (SVN) 64, a Block IIF spacecraft launched in February.

The problem affects only user equipment that erroneously uses navigation message data from the  satellites, which had yet to be set "healthy."

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By Inside GNSS
GNSS Hotspots | May 2014
May 18, 2014

GNSS Hotspots | May 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

JPL uses GPS to find Sierra Nevada water weight; Near collision of drone and regional jet prompts questions, West Antarctic ice sheet melt at “point of no return,” First Galileo FOC satellites at launch site, China’s GBAS tested in Tianjin

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By Inside GNSS
Papering Over Safety Gaps

Papering Over Safety Gaps

Well, I could have taken up the subject of the deteriorating condition of U.S./Soviet, excuse me, U.S./Russian relations. But there are only so many windmills that I have time to tilt at.

So, rather than tracing the dissolution of bilateral GNSS cooperation in the wake of Russia’s reclaiming the Crimea and, who knows, perhaps eventually a large swath of eastern Ukraine, I thought I’d turn to an only slightly more remediable issue — GNSS carriage requirements.

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By Inside GNSS
GNSS in Military Affairs

GNSS in Military Affairs

Doug Taggart, Overlook Systems Technologies

In the “gee-whiz” awesomeness of proliferating GNSS apps, it’s sometimes hard to remember that Global Positioning System originated as a military system designed to meet strategic and tactical needs on the battlefield.

And, with the U.S. Air Force continuing its 40-year mission as the executive agent for sustaining GPS, that undiminished military role plays no small part in ensuring the availability and reliability of the U.S. contribution to the GNSS system of systems.

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By Inside GNSS
FAA UAV Exemption Process Is in Place, Though Perhaps Imperfect

FAA UAV Exemption Process Is in Place, Though Perhaps Imperfect

Jim Williams, FAA UAS Integration Office. AUVSI photo

Companies hungry to offer commercial services in the United States with unmanned aircraft finally have something to chew on.

The Federal Aviation Administration (FAA) has laid out a process whereby a carefully selected set of unmanned aerial systems (UAS) may be granted an exemption to do for-pay flights before the first broad rules for U.S. flying unmanned aircraft are finalized.

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By Inside GNSS
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