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February 7, 2017

Spirent Security Experts Predict Greater Risk to GNSS this Year

Spirent Communications plc’s annual security forecast warns of the increased likelihood of disruptions this year to a wide variety of civil and military applications relying on global navigation satellite systems — GPS, GLONASS, Galileo, and BeiDou.

Events • February 6, 2017

WSTS Timing and Sync Event Includes Keynote Address on GPS Timing

The 26th annual Workshop on Synchronization and Timing Systems (WSTS), sponsored by The National Institute of Standards and Technology (NIST) and ATIS, will take place April 3-6 at the DoubleTree in Jan Jose, California.

February 16, 2017 - February 17, 2017
Washington, D.C.
New Builds • February 6, 2017

EndRun Releases GPS-Synchronized RTM3205 Precision Timing Module

Santa Rosa, California-based EndRun Technologies, a provider of precision time and frequency solutions, announced last week at the International Technical Meeting-Precision Time/Time Interval (ITM-PTTI) meeting, the release of the RTM3205 Precision Timing Module for portable time and frequency applications. The second generation RTM3205 is optimized for size, weight, and power (SWaP), but can exceed the stability of a standard cesium atomic frequency reference, according to the company.

February 3, 2017

ITM/PTTI addresses advances in GNSS technology, precise time

Another informative joint Institute of Navigation (ION) International Technical Meeting and Precise Time/Time Interval Meeting is in the books and attendees of the event this week in Monterey, California had the opportunity to learn and share ideas on a wide array of topics and technologies.

January 30, 2017

GPS Data Release to Boost Space-Weather Science

‘Unprecedented’ data key to understanding radiation threats to satellites and infrastructure, and expected to provide a boost to space-weather science is now available, announced a joint release from the American Geophysical Union (AGU) and the Los Alamos National Laboratory on January 30.

As of today, more than 16 years of space-weather data is publicly available for the first time in history. The data comes from space-weather sensors on board the nation’s GPS satellites.

January 26, 2017

GPS Data Used by ATRI to Name Top 100 Truck Bottlenecks

The American Transportation Research Institute (ATRI) released on January 25 its annual list highlighting the most congested bottlenecks for trucks in America.

Congestion chokepoints hurt the economy and the environment, so the ATRI uses GPS data collected each year to help identify times and locations that truckers will want to avoid.

Inside GNSS • January/February 2017

GNSS Hotspots

Tracking illegal logging in Romania, autonomous mining, ancient calendars and Canadian cows

Thinking Aloud • January/February 2017

No Sudden Moves

As with the notion of “disruption,” unpredictability can be useful. A move in chess or go, for instance. Or in the case of cuisine — say, when usurping Taco Thursday with chicken tagine. Even in negotiations, an unanticipated gambit can change the outcome positively.

Sometimes, of course, unpredictability is in the immanent nature of things. Despite advances in meteorological technology and science, weather continues to prove fickle. Foreknowledge of earthquakes remains difficult to pin down in space and time.

GNSS Solutions • January/February 2017

Is it possible to build a low-cost system to detect and locate a single GNSS jammer in near-real time?

Q: Is it possible to build a low-cost system to detect and locate a single GNSS jammer in near-real time?

A: GNSS jammers are an ongoing threat to the reliable use of GNSS. The problem of geolocating GNSS jammers can be addressed using a time-difference-of-arrival (TDOA) processing technique; however, this problem is quite different than geolocating jammers in other radio frequency systems. The two main differences are:

(1) No GNSS are available to use as a timing reference.

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