Opinions

How best to select a GNSS vendor: Reader poll

January 12, 2017By

The January reader poll asks you to answer the question: “What are the most important factors to consider in selecting a GNSS vendor?” Answer the poll by Jan. 25 for entry to a drawing for a $50 gift card. Create your free online surveys with SurveyMonkey , the world’s leading questionnaire tool. Survey not rendering correctly? View it in a... read more

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Geolocation and the surveyor: Looking back to the future

January 5, 2017By
mapping-history-explorers

The surveyor has been known throughout history for many things: part expert measurer, part historian, part lawyer and part geographer. These attributes have led the surveyor to become a trusted member of the mapping community, on both the public, and private sides. Through the use of technology and associated mapping knowledge, the surveyor has provided the base layer for almost... read more

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GNSS CEOs see bright future, alternative PNT promises well

December 28, 2016By
foursquare

It has been a good year for all global navigation satellite systems (GNSS), as the chief executives of each system testify here. Alternative positioning, navigation and timing (PNT) also thrives. In this roundup of the latest highlights from the past year and forecasts for the future, 2017 augurs very well indeed! Let’s look at the newest alternative-PNT offerings first, followed... read more

New defense signals offered, new defense editor sought

December 20, 2016By
Iridium satellite, courtesy of Iridium.

Two important new signals — or rather, one signal and one group of signals — became available for military users worldwide last week. Satelles made an exciting announcement of what amounts to a new dimension in satnav: a whole new constellation in low-Earth orbit, bringing global coverage and most critically, a signal strength hitherto unknown to GNSS users. The satellite... read more

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When inertial can help with GNSS solutions

December 14, 2016By
drive-test-walkthrough-1f

A number of organizations are focusing on how inertial can help GNSS receivers to provide more stable, reliable position outputs when signals are hard to receive. Papers presented in September at the ION GNSS+ 2016 conference in Portland, Oregon, demonstrate that there is indeed a lot of focused effort in this area. The conference showcased several integrated inertial GNSS solutions from a... read more

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Expert Opinions: Projection of 2017 PNT developments

December 12, 2016By

Q: What significant new developments in positioning, navigation or timing can we anticipate in 2017? A: With increasing focus on robust and resilient positioning, navigation and timing (PNT), the industry must respond with improved access to accurate and trusted position and timing, particularly for the warfighter. For military vehicles, this translates to a requirement for improved navigation systems that will... read more

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Directions 2017: The year of Galileo

December 9, 2016By
paul-verhoef-galileo-o

I write at an especially exciting moment for the Galileo satellite navigation system, as two flagship European programmes combine for the very first time. Mid-November will see the very first Galileo launch using an Ariane 5 launcher from Europe’s Spaceport in French Guiana, in place of the Soyuz that has served the constellation up until now. Four instead of two... read more

Directions 2017: New GLONASS capabilities for users

FIGURE 2. Passive hydrogen maser.

In October 2017 we will celebrate the 35th anniversary of the first GLONASS satellite launch. Since 1982, the capabilities provided by GLONASS satellites have multiplied and the system’s ground infrastructure has expanded beyond the Russian Federation. Growing demand for satellite navigation services and increasing user requirements call for continuing modernization, which is only possible if advanced, technically complex solutions are... read more

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