Design & Test

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

BeiDou Numbering Presents Leap-Second Issue

March 3, 2015By
Leap-Second-O

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

This article is tagged with and posted in Design & Test, Product Showcase

Study of Atmospheric ‘Froth’ May Help GPS Communications

February 26, 2015By
earth-ionosphere-NASA-O

GPS World Innovation editor Richard Langley has co-authored a study, described below, exploring how irregularities in Earth’s upper atmosphere can distort GPS signals, an important step toward mitigation. read more

Rohde & Schwarz Offers Simultaneous Time Domain and Spectrum Analysis

February 25, 2015By

Rohde & Schwarz has added the R&S RTM-K18 spectrum analysis and spectrogram option to its R&S RTM oscilloscope family, making the R&S RTM the only oscilloscope in its class that can analyze the time domain while simultaneously analyzing the spectrum, logic and serial protocol. Interactions such as those that occur in electronic devices with RF components are quickly analyzed in... read more

This article is tagged with , , , and posted in Design & Test

When in Rome…Check Galileo’s Performance

February 20, 2015By
Fucino_Rome-Galileo-O

The Thales Alenia Space plant in the eastern suburbs of Rome is home to a facility that provides a troubleshooting platform for the Galileo ground network and an assessment of the performance of the satnav constellation. read more

Third, Fourth Galileo FOC Satellites Confirmed Fit for Soyuz Launch

February 17, 2015By
Arianespace-March-O

The third and fourth Galileo Full Operational Capability (FOC) satellites are a confirmed “fit” for their Arianespace Soyuz launch March 27, having made initial contact with the mission’s dual-payload dispenser in French Guiana, according to Arianespace. The fit check was completed over a two-day period inside the Spaceport’s S1A payload preparation building. The two satellites were installed separately, with the... read more

This article is tagged with , , , and posted in Design & Test, Featured Stories, GNSS, Latest News