IFEN Officially Launches SX3 Software Receiver

September 18, 2014By

IFEN has launched the SX3 receiver. The company’s previous scientific software receiver, the SX‐NSR, was subject to major upgrades, while the respective hardware front-end was completely redesigned. Together, they build the new SX3 GNSS software receiver. IFEN’s most important innovation of the year was introduced at the ION GNSS+ Conference September 9-12 in Tampa, Florida. One of the SX3’s key features is four RF frequency... read more

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2014 Simulator Buyers Guide

March 1, 2014By

In GPS World’s annual Simulator Buyers Guide, we feature simulator tools, devices, and software from six prominent companies. Also available as a downloadable PDF. read more

Spirent’s SimSAFE Fights Signal Vulnerability

March 1, 2014By

By Tracy Cozzens Spirent Communications now offers SimSAFE, a software solution that simulates legitimate GNSS constellations along with spoofed or hoax signals to evaluate receiver resilience and help develop counter measures. Hoax or spoofing attacks work by mimicking genuine GNSS signals, which mislead GNSS receivers.  The military and critical infrastructure — such as wireless networks, banking, and utilities — are especially... read more

ESA Awards Contract to IFEN to Develop Advanced GNSS Signal Test Bed

February 18, 2014By

A contract to design and to deliver an advanced multi-GNSS constellation signal simulator and interface environment testbed was awarded by the European Space Agency (ESA) to IFEN GmbH on October 28, 2013. This contract is concluded in the context of the Signal Test Bed (SIGTB) activities of the European GNSS Evolution Programme (EGEP). In addition to addressing the second generation... read more

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Innovation: Under Cover

September 1, 2013By
FIGURE 1. Artist’s impression of the synthetic-aperture GNSS system for surveying in a forest.

Synthetic-Aperture GNSS Signal Processing
We take a look at a novel GNSS signal-processing technique, which uses the principles of SAR to improve code and carrier-phase observations in degraded environments such as under forest canopy. The technique can simultaneously reject multipath signals while maximizing the direct line-of-sight signal power from a satellite. Along with a specially programmed software receiver, it uses either a single conventional antenna mounted, say, on a pedestrian’s backpack for GIS applications or a special rotating antenna for high-accuracy surveying. Want to learn more? Read on. read more

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IFEN and WORK Microwave Offer BeiDou-2 Support, Enhancements for NavX-NCS GNSS Simulators

August 15, 2013By

The NavX-NCS GNSS multi-frequency simulator now supports China’s BeiDou-2 navigation satellite system. BeiDou support is a key enhancement in software update V.1.9 for the NavX-NCS GNSS multi-frequency simulator product line, by IFEN  and  WORK Microwave. Leveraging new features and functionalities, users have the flexibility to support a wide range of constellations, frequencies, and channels for research and development of GNSS... read more