timing Archives - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

March 24, 2020

CRPAs Protect Critical Infrastructure: How to Test

Since 2015, controlled reception pattern antennas (CRPAs) have come onto the market for civil applications where the need to counter increasing GNSS signal jamming and spoofing has grown exponentially. Highly classified and previously available only to authorized military users, these powerful — and unfamiliar — components expand protection for critical infrastructure. All systems incorporating them should be tested for revamped vulnerabilities. This is how.

A free webinar on Wednesday, March 25 from 1:00 PM – 2:30 PM Eastern Daylight Savings Time addresses the topic “GNSS Vulnerability Testing and the Controlled Reception Pattern Antenna (CRPA).”

By Inside GNSS

February 5, 2020

Details Emerge On Ligado Decision Delay

The chairman of the Federal Communications Commission (FCC) told two U.S. Senators in January that his agency could not complete a decision on Ligado Network’s license modification by the end of 2019 because of a late-in-the-year response from a key federal agency.

By Dee Ann Divis

February 3, 2020

Test Confirms Timing Resilience of LEO Time Service Underground, Indoors

A recent test demonstrated that the combination of the SecureSync time server manufactured by Orolia and the Satellite Time and Location (STL) service provided by Satelles can deliver extremely accurate timing as compared to Coordinated Universal Time (UTC).

By Inside GNSS

January 30, 2020

Mini Rubidium Atomic Clock Supports 5G, DoD, More

Microchip Technology Inc. has released a smaller-footprint, higher-performance atomic clock to meet core telecomm, military and critical infrastructure requirements for wider thermal range, quicker lock and higher stability.

By Inside GNSS

Interior-of-Atomichron-NC2001-showing-vertical-cesium-beam-tube-courtesy-of-Tom-Van

January 22, 2020

Time Is Relative, Position Absolute

I strode into the plenary session of the ION International Technical Meeting, primed and ready for a barrage of modernity, of out-in-front advances in precision positioning, navigation and timing. The first thing I saw was a 7-foot tall cesium beam tube, an early atomic clock from the 1950s.

By Alan Cameron

December 23, 2019

Robust Receiver in Development for Critical Infrastructure

The European GNSS Agency (GSA) awarded a contract for the development of the Galileo-based TIming Receiver for CriticAl INfrastructure Robustness (GIANO) to Thales Alenia Space, for resistance against interference, jamming and spoofing.

By Inside GNSS

November 26, 2019

The Industry, the Community, the Art, the Technology: A High-Level Perspective on GNSS and PNT

To gauge the present state of mind of the GNSS and PNT community, the state of play in application development, and the state of the art in positioning, navigation and timing technology, we asked four international experts for their perspectives. Here are the questions posed to them.

By Inside GNSS

IGM 20191106 GPS backup contracts ART Furchtgott-Roth

November 8, 2019

11 Firms Chosen to Demonstrate GPS Backup Technologies

The Department of Transportation (DOT) selected 11 firms to demonstrate technologies that could be used to back up the services provided by GPS should GPS signals be jammed, spoofed or unavailable.

By Dee Ann Divis

October 22, 2019

Tech Search Emphasizes Smaller, Better IMUs, Timing Technology

The U.S. Army is reaching out to industry for the advanced inertial measurement unit (IMU) and timing technology it needs to support warfighters when GPS is unavailable or compromised.

By Dee Ann Divis

September 13, 2019

Mini Atomic Clocks Promise Greater Accuracy and Alt-PNT Independence

The basis of all precision positioning and navigation is precision timing. Timing comes first. GPS Time is defined on the basis of a set of atomic clocks orbiting aboard the satellites and on the ground in monitoring stations; similarly for the other GNSS systems.

By Inside GNSS

August 12, 2019

GPS Combined With Galileo to Provide Robust Timing for the Financial Sector

Today, more and more integral fields of application including banking and finance, telecom networks and electricity grids, rely heavily on accurate, reliable, and traceable signals for time and synchronization.

By Ricardo Píriz, et al

August 1, 2019

Microchip’s Carrier-Grade Time, Synchronization Portfolio Expansion Improves Network Deployment, Reliability and Scalability

One of the biggest 5G network deployment challenges is synchronizing higher volumes of more densely packed base stations. Another is keeping services operating through GNSS lapses due to vulnerabilities such as jamming, spoofing or loss of signal. Microchip Technology Inc., via its Microsemi subsidiary, is solving these and other challenges for networks with additions to its Precision Time Protocol (PTP) PackeTime^® portfolio including the TimeProvider 4100 Release 2.0. The TimeProvider release adds 10 Gigabit Ethernet (GE) support, a Boundary Clock operation mode that lowers operational costs, and other enhancements to improve how timing flows are distributed from multiple sources to a network’s base stations and other endpoints.

By Inside GNSS

April 3, 2019

GMV Uses Skydel SDX Flexibility to Simulate GNSS Timing Events

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

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timing

Resilient Timing in Smaller Package for Infrastructure and Missio...

Update to GNSS Firewall Software Strengthens Critical Infrastruct...

CRPAs Protect Critical Infrastructure: How to Test

Details Emerge On Ligado Decision Delay

Test Confirms Timing Resilience of LEO Time Service Underground, Indoors

Mini Rubidium Atomic Clock Supports 5G, DoD, More

Time Is Relative, Position Absolute

Robust Receiver in Development for Critical Infrastructure

The Industry, the Community, the Art, the Technology: A High-Level Perspective on GNSS and PNT

11 Firms Chosen to Demonstrate GPS Backup Technologies

Tech Search Emphasizes Smaller, Better IMUs, Timing Technology

Mini Atomic Clocks Promise Greater Accuracy and Alt-PNT Independence

GPS Combined With Galileo to Provide Robust Timing for the Financial Sector

Microchip’s Carrier-Grade Time, Synchronization Portfolio Expansion Improves Network Deployment, Reliability and Scalability

GMV Uses Skydel SDX Flexibility to Simulate GNSS Timing Events