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

March 6, 2015By

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

Langley’s Ionosphere Research Focus of CBC Report

March 5, 2015By

CBC News interviewed GPS World Innovation Editor Richard Langley about his ionosphere interference research project with NASA, reported on earlier this week. Langley, a professor at the University of New Brunswick, is working with the Jet Propulsion Laboratory in California to better understand how the ionosphere is disturbed by a variety of phenomena including solar outbursts and other natural hazards such as... read more

MWC 2015: Rohde & Schwarz Adds Testing for Russia’s Emergency Calling

March 5, 2015By

Effective January 1, 2015, all new car models introduced to the Russian market must be equipped with the automatic ERA-GLONASS emergency call system. Rohde & Schwarz now offers a standard compliant test solution for manufacturers and suppliers of these in-vehicle systems. Rohde & Schwarz is demonstrating its ERA-GLONASS test setup at Mobile World Congress, being held this week in Barcelona,... read more

GPS World Simulator Buyers Guide

March 3, 2015By

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

BeiDou Numbering Presents Leap-Second Issue

March 3, 2015By

During preparation of playback scenarios for the upcoming leap-second event taking place in June, engineers at Racelogic identified a potential pitfall for GNSS engineers. The difficulty arises from the fact that BeiDou uses a different “day number” for the date to apply the leap second, compared with GPS and Galileo. GPS and Galileo use 1-7 as week day numbers, and... read more

Successful Testing — and Why It Is More Important Than Ever

March 2, 2015By

By John Pottle and Neal Fedora Precision matters. While “accuracy” is somewhat one-dimensional, “precision” is multi-faceted. We submit to you that whatever area of GNSS-based location you are interested in, precision matters today and will matter more in the future. In this column, we’ll explain why this is. Traditional test approaches involve taking measurements to evaluate fundamental performance, for example,... read more

Multiple RF Output Simulation

March 1, 2015By

Spectracom GSG-Series GNSS Simulators have added capability to provide multiple RF outputs for advanced testing where multiple receivers or antennas are in use in a single system. Typical examples include controlled radiation pattern antennas (CRPA) or heading/attitude receivers and systems. The intuitive StudioView software allows easy reconfiguration of test cases to change the conditions seen by one or all receivers... read more

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