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June 17, 2016 - June 19, 2016
Shenzhen, China
May 20, 2016

NovAtel Raises Concerns about Ligado Test Methodology, Results

NovAtel Inc. has submitted comments to the Federal Communications Commission (FCC) regarding Ligado Networks LLC’s (formerly New LightSquared LLC) License Modification Applications in which the company raises deep concerns about the testing methodology used and conclusions presented by Ligado regarding the impact of their proposed usage of L-band frequencies for a terrestrial wireless network.

Inside GNSS • May/June 2016

Inter-Signal Correction Sensitivity Analysis

Modernized GPS satellites give civil users the ability to achieve dual L1/L2 PY accuracy using dual L1CA/L2C ionosphere-free measurements and, with IIF satellites, dual L1/L5 signals. Because broadcast GPS ephemeris data is based on an ionosphere-free pseudorange calculated from dual L1PY/L2PY measurements and the civil signals are not all perfectly aligned to it, new broadcast parameters and a new modernized dual-frequency algorithm are needed in order to align new signals with the dual L1/L2 PY signal.

Human Engineering • May/June 2016

Boubeker Belabbas: At Home in the World

Boubeker Belabbas' Compass Points

Boubeker Belabbas, an expert in aerospace mechanics and safety-critical GNSS applications, grew up in Bordeaux, a city of wine, and works in Munich, a city of beer. But he started out in the land of mint tea: a small village in the north of Algeria in the region called Kabylia.

Working Papers • May/June 2016

GNSS Evolutions for Maritime

Trends for marine accidents show rising numbers and costs that are mainly associated with collisions and groundings. Research indicates that about 60 percent of these accidents are caused by human error. The majority of them could have been avoided by providing suitable input to the navigation decision-making process, according to a 2008 report by the International Maritime Organization (IMO) Marine Safety Committee. (See IMO 2008 in Additional Resources section near the end of this article.).

May 17, 2016

Wireless Broadband Aspirant's Own GPS Receiver Tests Show Signal Impact

The results from the GPS receiver testing sponsored by would-be wireless broadband provider Ligado are in. A review of the nearly 600 pages of data and analysis suggests that a number of GPS receivers can — by the firm's chosen, but somewhat controversial technical standard — operate in the presence of the company's proposed wireless signals.

Ventures • May 17, 2016

New Engineering Team at NovAtel Focuses on Positioning Technology for Autonomous Vehicles

NovAtel Inc. announced today (May 17, 2016) a new corporate initiative to develop functionally safe GNSS positioning technology for fully autonomous applications.

A provider of high-precision GNSS products for more than 20 years, NovAtel is leveraging its extensive experience developing safety-critical systems for the aviation industry to meet the future safety thresholds required for driverless cars and autonomous applications in agriculture, mining, and other government, military and commercial markets.

People • May 6, 2016

Beijing UniStrong Chief Takes Over (Temporarily) at Hemisphere GNSS

Hemisphere GNSS, Inc. today (May 5, 2016) announced that Xinping Guo has been named Interim President and Chief Executive Officer, effective immediately.

May 4, 2016

Trimble Introduces Multi-GNSS Module for System Integrators

Trimble has introduced its dual-antenna MB-Two GNSS module, which delivers GNSS-based heading plus pitch or roll in an industry-standard form factor for system integrators.

According to Trimble, the module’s embedded Z-Blade GNSS technology uses all available dual-frequency GNSS signals equally, without any constellation preference, to deliver fast and stable centimeter-accurate position and heading information. The MB-Two is designed as a solution for a variety of applications such as unmanned, agriculture, automotive, marine, and military systems.

May 1, 2016

FCC Opens GPS-Adjacent Ligado Proposal for Comment

The Federal Communications Commission (FCC) is officially asking for feedback on a proposal by Ligado Networks to repurpose frequencies near the GPS band for a terrestrial broadband network. The long-delayed public notice and comment period is a step in the approval process, although there is no assurance that Ligado's plan for a new wireless service — which may still cause interference to GPS receivers — will get the go-ahead.

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