Global Navigation Satellite Systems Engineering, Policy, and Design
eLoran signalWith worries mounting about jamming and other disruptions of GPS signals, officials took a step Friday (June 19, 2015) toward possibly establishing a backup for satellite navigation users in the United States.
By Inside GNSS
NovAtel G-III WAAS Reference ReceiverNovAtel Inc. today (June 17, 2015) announced an agreement with NEC Corporation to supply reference receiver products for use in Japan’s Quazi-Zenith Satellite System (QZSS).
The QZSS equipment will be based on NovAtel’s third-generation (G-III) family of reference receivers. Designed for integrity monitoring and reference measurement applications, the receivers track signals independently to provide precise code and carrier phase reference measurements as well as signal-quality measurements and other integrity monitoring metrics.
The federal Department of Transportation (DoT) Office of the Assistant Secretary for Research and Technology has released the 2014 Federal Radionavigation Plan (FRP) signed by the U.S. secretaries of defense, transportation, and homeland security.
The FRP is published every two years and provides an overview of the current planning and policy for U.S. positioning, navigation, and timing (PNT) systems.
Francisco Rovira-Más, Agricultural Robotics Laboratory, Universidad Politécnica de ValenciaNow that we have had GNSS-driven precision in the fields for nearly 20 years, with widespread and growing acceptance by farm vehicle manufacturers and farmers, what lies ahead for precision agriculture?
By Inside GNSS
Global navigation satellite systems provide position, velocity, and time (PVT) solutions to users whose receivers calculate position based on one-way ranging from satellites. As is well-understood, a key step in the positioning process involves a determination of the difference between the time of signal transmission identified in the satellite’s broadcast navigation message and the time of its reception by user equipment.
By Inside GNSS
The Pink City from up there. Photo by Peter GutierrezJudging from the variety of questions being asked at a recent EGNOS flight demonstration, the European Geostationary Navigation Overlay Service (EGNOS) remains something of a mystery for many of Europe’s leading aviation writers.
EGNOS, you say? What’s EGNOS?
By Inside GNSS
The next decade’s aircraft pilots will be able to rely on enhanced, reliable GNSS satellite navigation signals on a seamless basis across much of the world, thanks to decisions made at the latest gathering of worldwide GNSS augmentation system providers and experts.
By Inside GNSS
Registrations are still available for the this year’s European Space Agency (ESA) International Summer School on Global Navigation Satellite Systems, which will take place in Barcelona, Spain, at the end of August.
Meb Keflezighi midway through 2014 Boston Marathon en route to victory. Wikimedia Commons photo“Wearable” sensors, the Internet of Things, and GNSS didn’t achieve as high a profile as they might have in the 2015 Boston Marathon held Monday (April 20, 2015). That’s because last year’s winner, Meb Keflezighi, finished eighth behind Ethiopia’s Lelisa Desisa and well off the former’s winning 2014 pace of 2:08:37.
NovAtel GPS-704-WB antennaNovAtel Inc. today (April 23, 2015) launched the GPS-704-WB antenna, a wideband antenna that supports L-band as well as the frequencies of all current GNSS constellations (GPS, GLONASS, Galileo, and BeiDou), including B3 and E6 signals. Customers can use this antenna for GPS-only or multi-constellation applications, providing excellent flexibility for application developers, according to the company.
By Inside GNSS
The 2015 edition of the European Navigation Conference (ENC) in Bordeaux last week found the continent’s GNSS community leaving troubles behind and looking to the future, where the world’s dependence on GNSS is greater, the risks higher, and the potential profits ever more tantalizing.
Speaking at the opening session dedicated to “the impact of GNSS on the economic sector,” Topos Cluster President Florence Ghiron answered the question in the simplest of terms: “We expect the GNSS market to grow and to include more and more industrial sectors.”
Four leading lawmakers, apparently impatient with the Obama Administration’s less-than-urgent approach to assuring availability of critical navigation and timing resources, have sponsored a bill mandating the Department of Defense institute a backup for the Global Positioning System.
If approved, the National Positioning, Navigation, and Timing Resilience and Security Act of 2015 (H.R. 1678) would give the U.S. secretary of defense three years to establish, an alternative, land-based source for positioning, navigation, and timing (PNT) data.
By Inside GNSS
The fourth satellite of Indian Regional Navigation Satellite System, IRNSS-1D, was launched toward its intended geosynchronous orbit (GSO) today (Saturday, March 28, 2015) onboard the Polar Satellite Launch Vehicle (PSLV-C27).
Seven satellites will comprise the IRNSS constellation being developed by the Indian Space Research Organization (ISRO) to provide navigational services. IRNSS will help augment the satellite-based navigation system of India, which is currently under development and will provide navigation, tracking, and mapping services to the South Asia region.
By Inside GNSS
