Global Navigation Satellite Systems Engineering, Policy, and Design
Last week marked a significant step toward providing a boost to the accuracy and reception of the existing GPS in Japan and to delivering a better positioning reading for the people in that country.
By Inside GNSS
The VG380 vertical gyros modules. Photo source: MEMSIC Inc. MEMSIC Inc., with headquarters in Andover, Massachusetts, recently announced the addition of the VG380 to its portfolio of inertial modules. These new vertical gyros are designed to provide highly accurate pitch and roll (with respect to gravity), in both static and dynamic conditions. The static and dynamic accuracy is specified at +/-0.2 and +/-1.0 degrees (respectively) over the -40C to +85C temperature range.
By Inside GNSS
The Virginia firm that had been hoping to use satellite frequencies near the GPS band to support a terrestrial broadband network has changed its pitch to regulators. Ligado, previously named LightSquared, is working to convince the Federal Communications Commission (FCC) that its frequencies are the way to provide connectivity to the broad internet of things (IoT) including unmanned aircraft, driverless cars and other unmanned systems.
By Dee Ann Divis
The new GSS200D Interference Detector was developed as part of Spirent’s partnership with Nottingham Scientific Limited. Photo source: Sprirent.Spirent Communications has announced a solution that enables the civil aviation industry to evaluate the growing threat of GNSS interference, jamming and spoofing. The new GSS200D Interference Detector was developed as part of Spirent’s partnership with Nottingham Scientific Limited.
By Inside GNSS
With designs on providing a boost to navigation safety and efficiency for commercial and general aviation, Raytheon Company on May 18 launched its GEO 6 satellite payload into orbit for its 12-year mission. It is the latest payload to support the Federal Aviation Administration’s Wide Area Augmentation System (WAAS) which enhances the reliability and accuracy of GPS signals for directing air travel.
By Inside GNSS
Though civilian GNSS activities fared reasonably well in the just-signed 2017 federal budget, the White House has already forecast cuts across non-defense agencies next year leaving the funding outlook for civil GNSS programs uncertain at best.
President Trump signed the fiscal year 2017 (FY17) spending bill on May 5, preventing another government shutdown and ensuring funding for agencies including the Department of Transportation (DoT), which is responsible for supporting civil GPS needs.
By Dee Ann Divis
In an opinion released earlier this spring, the Florida Fourth District Court of Appeal ruled against law enforcement use of data (including GPS-based data) from a car’s "event recorder" or "black box" without a warrant. The decision was just one of many in recent months that deals with the subject, as technology advances and privacy issues are clashing on a regular basis.
By Inside GNSS
Michibiki launch control room during the first launch in 2010. (JAXA photo)Officials at the Tsukuba Space Center of the Japan Aerospace Exploration Agency (JAXA) announced that the second satellite in the Japanese Quasi-Zenith Satellite System (QZSS) is scheduled for launch in June.
Designed to boost the accuracy and reception of the existing GPS system for Japan, a new version of a satellite that will orbit directly over the Japanese archipelago was unveiled last week. It will improve the existing GPS and provide a better positioning reading for the people in Japan.
By Inside GNSS
Discussions continue on the pros and cons surrounding the possible privatization of the nation’s Air Traffic Control (ATC), with opponents sharing concerns and a proposal by President Trump aimed at looking into taking the air operations duties away from the Federal Aviation Administration (FAA).
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. ANTARCTIC OASIS
Antarctic Peninsula
The annual Joint Navigation Conference (JNC) is a military positioning, navigation and timing (PNT) event hosted by the Institute of Navigation (ION) on behalf of the U.S. Department of Homeland Security. The ION 2017 JNC advance conference program is now available online.
By Inside GNSS
Demo Test in Italy on Cagliari – Decimomannu line – February 24, 2017. From left: Josef Doppelbauer (Executive director of ERA – European Union Agency for Rail), Maurizio Gentile (Chief Executive Officer of RFI – Rete Ferroviaria Italiana), Jean-Pierre Loubinoux (Director General of UIC – the worldwide professional association representing the railway sector and promoting rail transport), Carlo des Dorides (Executive director of GSA).
Orolia recently announced successful synchronization in multiple indoor locations. Photo source: Oriola.Rochester, New York-based Orolia recently announced (March 22) that in several indoor environments in the field, it has successfully synchronized a Spectracom SecureSync high precision time server with the new Iridium Satelles Satellite Time & Location (STL) time synchronization signal powered by Iridium satellites.
By Inside GNSS
