Global Navigation Satellite Systems Engineering, Policy, and Design
There are interesting tradeoffs to consider in placing navigation satellites at various orbital heights, including signal power, availability, cost, orbit prediction, receiver computational load and manufacturer motivation.
By Inside GNSS
Innovative European developers use emerging GNSS-based Internet of Things technologies to create more power-efficient solutions for a range of logistics, maintenance and other applications.
By Peter Gutierrez
It has become fashionable of late in U.S. government circles to undermine the U.S. defense forces. The General Accounting Office (GAO), the Federal Communication Commission (FCC) and the White House (POTUS) have all pitched in, doing their share to weaken the capability and downgrade the tools with which our warfighters enter conflict.
The Russian Defense Ministry has publicized tests of its new Tornado-S precision missile, which takes GLONASS data input for its target and flies in squads capable of taking out dispersed enemy formations. The missile comes in a multiple launch rocket system (MLRS) that can fire up to 12 missiles simultaneously in a coordinated attack.
By Inside GNSS
A favorable GAO ruling discounted Congressional allegations that the FCC skipped a key legal step before granting Ligado’s controversial application. This positions the broadband company closer to its target and to ongoing interference with GPS signals.
By Dawn M.K. Zoldi (Colonel, USAF, Ret.)
The Armed Forces Communications and Electronics Association (AFCEA) Europe held a virtual workshop in early September on the topic of “Cybersecurity in and for Space Operations.” Speakers told attendees of the threats posed to vital space systems, including Galileo and GPS, by foreign hackers, cyber warfare and online espionage, and of initiatives to harden satellite capabilities against cyber attacks.
By Inside GNSS
GMV Innovating Solutions Limited, the UK aerospace company belonging to the Spanish technology multinational GMV, has signed a merger agreement with Nottingham Scientific Limited (NSL).
By Inside GNSS
The #MyGalileoSolution contest for European innovators and entrepreneurs ready to develop location-based solutions has gotten underway.
By Inside GNSS
The launch of a GLONASS constellation next-generation K satellite is scheduled for October, announced Nikolai Testoyedov, general director of the Reshetnev Information Satellite Systems Company. An exact date will be set by a state commission.
By Inside GNSS
The new GPS Military-Code (M-Code) Early Use (MCEU) hardware and software upgrade successfully took place on July 27 at the GPS Operational Control System (OCS) at the Master Control Station at Schriever Air Force Base, Colorado and Alternate Master Control Stations at Vandenberg Air Force Base, California.
By Inside GNSS
The third next-generation GLONASS-K navigation satellite, postponed several times, will now take place in late August or early September, according to reported statements by Russian space industry sources. This marks a long-delayed step along a road towards interoperability with other GNSS. The first GLONASS-K satellite was launched in 2011 and a second one in 2014.
By Inside GNSS
Galileo will provide a High Accuracy Service (HAS) with positioning performance in the 20-cm range, disseminating Precise Point Positioning (PPP) corrections through the Galileo E6-B signal. Test results of a data encoding and dissemination scheme in different user environments demonstrate a reception time of the corrections in a few seconds in good channel conditions, and less than half a minute with severe channel impairments.
By Inside GNSS
Microchip Technology’s new time and frequency server with an embedded M-Code GPS receiver gives protection to military communication systems, radar and networks from the threats associated with intentional GPS jamming and spoofing, as well as cybersecurity risks to critical infrastructure.
By Inside GNSS
