Global Navigation Satellite Systems Engineering, Policy, and Design
Graph showing the difference between UT1 and UTC. Vertical segments correspond to leap seconds. Source: Wikimedia CommonsDifferences between BeiDou and GPS and Galileo in designation of a “day number” for the date of applying leap second later this year could cause problems for GNSS receiver manufacturers, according to UK-based simulator provider Racelogic.
By Inside GNSS
New rules recently adopted by the Federal Communications Commission (FCC) to help emergency responders better locate wireless 911 callers highlight the role of GPS and GNSS technologies while boosting the use of alternative positioning technologies in indoor locations.
However, the new enhanced (11 (E911) rules, adopted January 29 and published on February 4, explicitly avoided a decision on the use of GNSS systems other than GPS.
By Inside GNSS
Ray Clore, U.S. State Department. Peter Gutierrez photoAlmost half of the sessions at the International Navigation Conference (INC) 2015 held this week (February 24–26) in Manchester, England, were devoted to the theme of GNSS resilience and vulnerability, a topic that Dana Goward of the Resilient Navigation and Timing Foundation has been trying to drive home for years.
By Inside GNSS
U.S. lawmakers, dissatisfied with the pace of international efforts to prevent losses like that of an Malaysia Airlines plane last year, may push through legislation requiring tracking capability on planes operating in the United States.
Nearly a year after flight MH370 disappeared over the Indian Ocean, the International Civil Aviation Organization (ICAO) is a year away from adopting a standard for aircraft tracking technology, Ambassador Michael Lawson, the U. S. representative to the organization told lawmakers on Wednesday.
By Inside GNSS
A range of new technologies for indoor positioning and navigation were unveiled at the International Navigation Conference (INC) 2015 held this week (February 24–26) in Manchester, England.
Organized by the Royal Institute of Navigation (RIN), the premier event in this new conference series focused on GNSS, its strengths and weaknesses.
A Federal Register notice published today (February 13, 2015) announced a third U.S. Department of Transportation workshop on March 12 to continue discussions of the Global Positioning System (GPS) Adjacent Band Compatibility Assessment Plan.
The workshop will focus on identification of GPS and GNSS receivers to be considered for testing that are representative of the current categories of user applications and discuss a GPS/GNSS receiver test plan.
By Inside GNSS
Trimble introduced today (February 10, 2015) the R1 GNSS receiver, a pocket-sized, standalone, single-frequency (L1/G1) receiver that works with iOS, Android or Window mobile handhelds, smart phones, and tablets using Bluetooth connectivity.
When paired with a smart device, the receiver/antenna combination adds GNSS geo-location capabilities to transform consumer devices into high-accuracy mobile data collection systems. The 44–parallel channel receiver can track GPS, GLONASS, Galileo, BeiDou, and Quasi-Zenith Satellite System (QZSS) signals.
Member states of the International Civil Aviation Organization (ICAO) recommended the adoption of a new 15-minute aircraft tracking standard yesterday (February 3, 2015) during discussions among more than 850 participants to the UN aviation body’s 2015 High Level Safety Conference in Montreal, Canada.
The recommended standard is performance-based and not prescriptive, meaning that global airlines would be able to meet it using the available and planned technologies and procedures they deem suitable.
By Inside GNSS
NovAtel Inc. has announced availability of its FlexPak6D enclosed GNSS receiver, a dual-antenna solution for application developers seeking a high precision heading-capable positioning engine for space-constrained applications.
These days getting the United States, Russia, China, and Europe to agree on a common policy seems to be an increasingly rare event.
That’s why the long-standing comity among system operators in the GNSS sphere is particularly notable and welcome. “Interoperable and compatible” is the first principle espoused by the four nations under the aegis of the International Committee on GNSS.
By Dee Ann Divis
ICM SMT 360 timing moduleTrimble has introduced a new portfolio of GNSS-based time and frequency products to address the synchronization needs of the fast-growing 4G LTE (Long Term Evolution) small-cell telecom market.
Mobile telecom networks, whether 3G, 4G LTE, LTE-Advanced (LTE-A) wireless technologies, or a combination, need high-precision synchronization and syntonization.
By Inside GNSS
The group that sets standards for aircraft navigation receivers is planning work on four new types of devices including the first multi-signal and multi-constellation aviation receivers and a more cost effective navigation system to help planes traverse GPS-impaired areas.
By Inside GNSS
College Hall at Cranwell, Lincolnshire, EnglandTerry Moore will speak about "What Next for GNSS" at the Royal Institute of Navigation Anderson Memorial Lecture at Whittle Hall, RAF Cranwell, Sleaford, Lincs, U.K. on March 2, 2015.
By Inside GNSS
