Global Navigation Satellite Systems Engineering, Policy, and Design
The upcoming GPS Week Number Rollover (WNRO) on April 6 is bringing a lot of attention not only in the specialized GNSS media, but also in the general media. The WNRO is a known feature of GPS that occurs only every roughly 20 years and thus can be anticipated and tested in a receiver using a GNSS simulator.
By Inside GNSS
Precision time and frequency solutions provider EndRun Technologies has launched its next generation, e-Series Distribution Chassis that adds a secure, integrated network management interface. The e-Series Distribution Chassis is said to maintain the industry leading frequency, pulse, and time code distribution functionality that provides high integrity signals to mission critical systems including communications, satellite earth stations, broadcast transmitters, military test ranges, production test, and others.
By Inside GNSS
EndRun Technologies, a provider of precision time and frequency solutions, has announced the availability of the Meridian II 2U Precision TimeBase, a metrology grade time and frequency standard traceable to UTC(USNO). This addition to the Meridian II product family introduces an Ultra-Stable Rubidium oscillator option, increased output capacity, and modular power supplies for high-availability, mission critical, and high-performance applications.
By Inside GNSS
The deadline for submitting abstracts for the Institute of Navigation’s (ION) ION GNSS+ 2019 Conference is Friday, March 1, 2019.
By Inside GNSS
China, Russia and other adversaries including Iran and North Korea pose a threat to U.S. infrastructure on the ground and in space according to a new congressional report, a conclusion that may sharpen lawmakers’ focus on building a recently mandated backup system for GPS timing,
The Worldwide Threat Assessment, released Wednesday by the Senate Select Committee on Intelligence, says that all four nations plus criminal organizations have the ability to use cyber techniques to create local disruptions of critical infrastructure.
By Dee Ann Divis
At next week’s Precise Time and Time Interval Systems and Applications (PTTI) annual conference sponsored by ION, attendees can take part in a technical program designed to disseminate and coordinate PTTI information at the user level, review present and future PTTI requirements, inform government and industry engineers, technicians, and managers of precise time and frequency technology and its problems, and provide an opportunity for an active exchange of new technology associated with PTTI.
By Stan Goff
Manassas, Virginia, January 8, 2019–Due to the extended impasse between U.S. Congressional leaders and the White House that has created a partial U.S. government shutdown, the Institute of Navigation (ION) has decided to postpone the Cognizant Autonomous Systems for Safety Critical Applications (CASSCA) Conference scheduled to take place January 28-29, 2019 at the Hyatt Regency Reston in Reston, Virginia.
By Inside GNSS
Imagination Technologies today announced the offering of the Ensigma Location GNSS IP core that supports GPS, GLONASS, Galileo, and BeiDou as well as several Satellite-Based Augmentation Systems (SBAS) including WAAS and EGNOS. Designed for ultra-low power consumption, the IP is designed to optimize battery powered remote IoT sensors and edge devices, wearables, health monitors, consumer mobile products, automotive after-sales products such as insurance boxes and road tolling equipment, and asset tracking devices.
By Stan Goff
The deck of a tall ship rolled heavily beneath me as a freshening wind whistled through the rigging. A sextant in one hand and a stop watch in the other, I carefully listened. “Tock, Tock, Tock, Tock… the time is now fourteen hours, fifty-eight minutes, Coordinated Universal Time… Dong.” I clicked the stop watch in preparation for checking and winding the ship’s chronometers and measuring the height of the sun at local apparent noon.
By Inside GNSS
Solutions to toughen receivers (make them more resistant to jamming and spoofing), and to augment GPS signals with those from other sources, will require either replacement or modification of existing equipment.
By Inside GNSS
NovAtel announced today that it is now delivering their market-leading SPAN® tightly-coupled GNSS+INS navigation technology in a rugged, ultra-compact unit. Commercially exportable and ideal for integration into a wide variety of applications, the high-performance SPAN CPT7 is designed to deliver assured positioning – anywhere, in a package one-quarter the size of the highly successful SPAN-CPT.
By Inside GNSS
With eyes on a future where reliable GNSS back-ups are in place to protect against both accidental or intentional disruptions of GNSS, three organizations represented on Positioning, Navigation and Timing Technical Group (PNTTG) – Innovate UK Knowledge Transfer Network (KTN), Royal Institute of Navigation (RIN) and The General Lighthouse Authorities – hosted a seminar last month to review user needs and the status of two possible RF back-up options to GNSS mentioned in the London Economics report on the economic impact of a GNSS disruption.
By Stan Goff
The Australian government has launched a four-year plan to upgrade and densify its National Positioning Infrastructure (NPI) to improve position accuracy from coast to coast.
By Dee Ann Divis