Global Navigation Satellite Systems Engineering, Policy, and Design
Scientists at Draper Laboratory have patented a celestial navigation system called a sliced-lens star tracker, which in its early form can achieve 50-meter accuracy in GNSS-denied environments. Improvements are expected as the technology evolves. Vehicles of all kinds may be able to benefit when using this system for navigating by the stars.
By Inside GNSS
Arianespace recently announced it will launch a total of eight new Galileo satellites over the next few years.
The European Union Agency for the Space Programme (EUSPA) selected Arianespace to launch four new Galileo satellites for Europe’s satellite navigation system, according to a news release. This comes after the European Space Agency’s (ESA) order to launch four satellites last October and will complete the deployment of first-generation Galileo satellites.
By Inside GNSS
TerraStar-C PRO is the first global correction service from Hexagon to incorporate innovative RTK From the Sky technology to achieve RTK-level accuracy in three minutes with 99.999% availability
By Inside GNSS
The European Union Agency for the Space Programme has published a 41-page Info Note on the Galileo Open Service Navigation Message Authentication (OSNMA).
By Inside GNSS
Intermap Technologies, a provider of geospatial content development and intelligence solutions, received a prime contract with the U.S. Air Force to support the Air Force Research Laboratory (AFRL) in its development of navigation solutions for GPS-denied environments.
By Inside GNSS
The Air Force Research Laboratory’s complementary PNT AgilePod prototype aced its first high-dynamic flight tests in November 2021. It also achieved two other firsts: the first test of fully-remote interfacing and alt-PNT data transmission, and the first demonstration of overland/overwater transition performance.
By Inside GNSS
The last GPS III Space Vehicle under the original GPS III contract has been christened “Hedy Lamarr” as part of its production milestone known as core mate, assembling it into a full satellite.
By Inside GNSS
A Soyuz launcher operated by Arianespace and commissioned by ESA lifted off with the pair of 715 kg satellites from French Guiana on December 5. The two join 26 Galileo satellites in the orbiting constellation that now provide Initial Services.
By Inside GNSS
In a race with the U.S. to develop a laser communications network in space, China’s BeiDou GNSS has conducted an inter-satellite and satellite-ground station experiment using using lasers rather than the usual radio signals. The technology could potentially transmit data a million times faster than by radio signal to almost any location. Some experts say it could increase satnav accuracy by a factor of 6 to 40
By Inside GNSS
Russia conducted an unannounced direct-ascent anti-satellite (DA-ASAT) missile test on November 15, targeting and exploding its own defunct satellite Tselina-D. After the test, Russian television executive and spokesperson Dmitry Konstantinovich Kiselyov, head of the official Russian government-owned international news agency Rossiya Segodnya, reportedly said on live tv that this demonstrated that Russia could and would if necessary target U.S. GPS satellites, thus “blinding” its military forces.
By Inside GNSS
The U.S. Navy’s Office of Naval Research (ONR) Global announced the winner of its second Global-X Challenge, kicking off a proof-of-concept effort on an alternative navigation system using muons in the Arctic to gain precision equal to that of GPS.
By Inside GNSS
Teledyne FLIR’s Neutrino® Series simplifies the process, shortening integration timelines and lowering costs.
By Inside GNSS
Low Earth Orbit (LEO) satellites are being launched regularly into space to create satellite constellations for a variety of purposes: communication, surveillance, providing Internet service and more. Global satellite navigation service is provided by satellites in higher orbits, mi-Earth orbit (MEO) roughly 25,000–27,00 kilometers above the Earth. Could satellites in LEO be used to provide global satellite navigation?
