PNT Archives - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

PNT

March 30, 2022

Europe Initiates Ambitious SBAS Expansions: Dual-Frequency Multi-Constellation Signals Coming to EGNOS

The European Geostationary Navigation Overlay Service (EGNOS) will soon launch a new maritime solution that will make legacy and costly coastal ground-based augmentation systems redundant. Meanwhile, the next generation EGNOS V3, featuring dual-frequency, multi-constellation (DFMC) services, is set to come online by 2028, once GPS L5 is declared operational.

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By Peter Gutierrez

Deus in the Machina: Machine-Learning Corrections for Improved Position Accuracy

A novel method for improving the positioning accuracy of GNSS receivers exploits a machine learning (ML) algorithm. The ML model uses the post-fit residuals, which are readily available after the position computation from the position, velocity and timing (PVT) engine, adoptable by existing receivers without requiring any modification. The performance of this method, demonstrated using data collected with mass-market receivers as well as a Google public dataset collected with Android smartphones, shows the practicality of the concept.

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By Inside GNSS
March 7, 2022

Washington View: 5G, PNT, and Air Safety

A  deadlock over 5G implementation, and the potential hazards the technology would create for air traffic safety, has been at least temporarily resolved. Not all questions have been answered nor problems eliminated, however. And while radio altimeters do not use GPS or GNSS technology, they are definitely PNT devices, and this situation could create precedents for ongoing and future conflicts between telecom and PNT use of the finite radio spectrum.

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By Dawn M.K. Zoldi (Colonel, USAF, Ret.)
February 24, 2022

Software-Defined GNSS Receiver Goes Open Source

The Finnish Geodetic Institute (FGI) of the National Land Survey of Finland announced the release of its software-defined receiver as open source for the international GNSS community. The GSRx software receiver has been extensively used as a research platform for the last decade in different national and international R&D projects to develop, test and validate novel receiver processing algorithms for robust, resilient and precise position, navigation and timing (PNT).

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By Inside GNSS
February 15, 2022

EMCORE to Acquire L3Harris Space and Navigation Business

EMCORE Corporation, a provider of advanced mixed-signal products that serve the aerospace & defense, communications, and sensing markets, announced that it has entered into a definitive agreement to acquire the assets and liabilities of the L3Harris Space and Navigation Business for approximately $5 million in an all-cash transaction.

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By Inside GNSS
February 7, 2022

GNSS and Earth Observation Market Report Finds 200 Billion Euro ($229 Billion) Revenue Generated in 2021

The European Union Agency for the Space Programme (EUSPA) has published its Earth Observation (EO) & GNSS Market Report, an outgrowth of its annual GNSS Market Report now that the agency has also taken on Earth observation among its administrative responsibilities. The Report is compiled and written for all those making these technologies part of their business plan and developing downstream applications.

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By Inside GNSS
January 27, 2022

The Stars Return: Draper Patents Celestial Navigation System

Scientists at Draper Laboratory have patented a celestial navigation system called a sliced-lens star tracker, which in its early form can achieve 50-meter accuracy in GNSS-denied environments. Improvements are expected as the technology evolves. Vehicles of all kinds may be able to benefit when using this system for navigating by the stars.

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By Inside GNSS
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