From the Magazine

Expert Advice: Taking Up Positions — Galileo and E112

March 31, 2015By
Andy-Proctor-T

Europe is looking at the imposition of Galileo as part of an A-GNSS technology push for E112 emergency calling applications. E112 processes currently do not specify performance criteria for the position location accuracy. read more

Out in Front: The Things We Carry

March 31, 2015By
Alan Cameron, editor-in-chief

We have entered a discussion phase at the magazine, a fierce conversation if you will, occasioned on the one hand by the periodic need to freshen our appearance, but also to re-investigate and re-evaluate our whole approach. The way we do things, and the actual things we do. The thoughts and pre-conceptions and mental equipment we carry with us to... read more

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The Business — April 2015

March 30, 2015By

The Business section from the April 2015 issue. Download the PDF. Includes: Mobile World Congress Report; Rohde & Schwarz Adds Testing; FAA Seeks Comments on UAS; and more read more

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GSA’s 2015 Report Dives Deep into Global GNSS Market

March 27, 2015By
FIGURE 2. SUPPORTED CONSTELLATION BY RECEIVERS Chart shows the percentage of available
receivers capable of tracking signals from one GNSS (such as GPS only), two GNSS (GPS
+ Galileo, GPS + GLONASS, GPS + BeiDou), three GNSS (GPS + Galileo + GLONASS, GPS +
Galileo + BeiDou, GPS + GLONASS + BeiDou) or tracking signals from all constellations at
the same time. The percentages add up to 100 percent. We can conclude that almost 60
percent of all available receivers, chipsets and modules are supporting a minimum of two
constellations, showing that multi-constellation is becoming a standard feature across all
market segments.

2015 GNSS Market Report: European GNSS Agency Provides a Fresh Look at Worldwide Growth The fourth edition of the European GNSS Agency’s (GSA’s) GNSS Market Report provides a comprehensive source of knowledge on this dynamic global market. The report has become a key reference for organizations building their GNSS market strategies. The new edition provides: Comprehensive updates on previous analyses;... read more

Antenna Array and Receiver Testing with a Multi-RF Output GNSS Simulator

March 6, 2015By
Luck_opener-O

This article discusses the GALANT adaptively steered antenna array and receiver, demonstrating the test scenarios generated with the GNSS simulator. Exemplary results of different static and dynamic test scenarios are presented, validating the attitude determination capabilities as well as the interference detection and mitigation capabilities. read more

Innovation: Where Are We?

March 5, 2015By
FIGURE 4. Trajectory solutions.

Positioning in Challenging Environments Using Ultra-Wideband Sensor Networks
The use of large transmission bandwidths offers a number of benefits, including accurate ranging and that application in particular is being actively developed for positioning and navigation in environments that are challenging to GNSS such as indoors and built-up areas. In this month’s column, we take a look at the work being carried out in this area by a team of researchers at The Ohio State University. read more

GPS World Simulator Buyers Guide

March 3, 2015By
GPS_Mar15_SimulatorBG_Cover

The GPS World Simulator Buyers Guide, from the March 2015 issue, features the latest simulators from seven top companies. read more

On the Edge: The Precision to Carry On

March 1, 2015By
Components easily pack into a baseball-style case.

When asked to do a small survey job overseas, we were concerned about shipping bulky and expensive survey equipment. Shipping costs are not trivial. Add to that the real possibility that your survey equipment may be confiscated by the local authorities, as ours was in Djibouti, and the cost of shipping equipment becomes a substantial part of the overall job. There should be alternatives, especially if accuracy requirements are not stringent. read more