GPS Archives - Page 16 of 138 - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

May 21, 2020

The New Flex Power Mode: From GPS IIR-M and IIF Satellites with Extended Coverage Area

GPS satellites usually transmit their signals with constant power. However, a so-called “Flex Power” is foreseen to increase the strength of individual signals to better fulfill operational constraints. Flex power operations can be detected in carrier-to-noise density ratio (C/N0) observations provided by GNSS receivers of the global tracking network of the International GNSS Service (IGS).

By Peter Steigenberger, et al.

May 19, 2020

Washington View: U.S. Government Deals Body Blow to Its Own Military Security

The Federal Communications Commission ignored a technical standard defining radio-frequency interference. The five commissioners licensed powerful terrestrial broadcast next to the satellite band, exposing national defense and critical infrastructure to harm.

By Inside GNSS

Knives Out

The Federal Communications Commission should really consider updating its motto. “Firm, fast, flexible, and fair” has a bit of an old-fashioned ring. As mottos go, it fails to keep up with the times.

By Alan Cameron

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May 18, 2020

Contract to Plan Next Phase of EGNOS Evolution

The European Space Agency (ESA) awarded two contracts to Thales Alenia Space concerning system evolution of the European Geostationary Navigation Overlay Service (EGNOS).

By Inside GNSS

Photonic Technology Brings a Cutting Edge to Inertial

Order-of-magnitude advances in inertial technology seem to take place roughly every 20 years, and the industry is poised at such a point now. New developments in photonic technology make high-performance inertial measurement accessible at lower size, weight and power. Many applications from driverless cars to UAVs can now take advantage of positioning that can independently bridge GPS outages from 2 minutes up to 10 minutes.

By Inside GNSS

May 15, 2020

Connected Ambulance Uses GPS to Tightly Coordinate Advanced Comms for Emergencies

A connected ambulance demonstrator develops a multitude of communications options on board, in preparation for a full healthcare connectivity development and test center in the UK.

By Inside GNSS

Massive Online Open Course on GPS Still Available for Those in Lockdown — and Those Who Aren’t

Just like the kids valiantly doing their homework during this strange, removed time, PNT enthusiasts young and old around the world can put their isolation to good use by honing skills at home. “GPS: An Introduction to Satellite Navigation,” the massive online open course created by Frank van Diggelen and the late Per Enge, is available on YouTube.

By Inside GNSS

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May 14, 2020

Receiver with Inertial for UAVs

A new GNSS/INS receiver, the AsteRx-i D UAS from Septentrio, specifically targets integration into unmanned aerial systems (UAS). It provides centimeter-level RTK positioning and 3D attitude. It features a 44 pin connector compatible with 3rd-party integrations, as well as event marker inputs to accurately time-stamp camera shutter events.

By Inside GNSS

May 12, 2020

New Marine Receiver Delivers Ultra-precise Position

A new marine-certified quad-band GNSS receiver, the LD900 from VERIPOS, delivers accurate and reliable positioning in demanding offshore environments. The LD900 can track four GNSS frequencies simultaneously to ensure a precise position is always available at sea.

By Inside GNSS

May 11, 2020

Qinertia PPK Software From SBG Systems Now Open to all IMUs, GNSS Receivers

Qinertia, a PPK software from SBG Systems, now supports third-party Inertial Measurement Units (IMUs) and offers a GNSS post-processing license that covers all major GNSS receivers.

By Inside GNSS

April 23, 2020

FCC Chooses “Broadcast-Till-You-Break-It” GPS Interference Standard

In its order allowing Ligado Networks to use satellite frequencies for on-the-ground wireless, the Federal Communications Commission set conditions on the firm’s operations, but only at the very tail end. Those conditions are there to help protect GPS receivers from interference — interference the FCC acknowledges as being quite possible.

By Dee Ann Divis

April 21, 2020

Opposition to Ligado Plan Remains Strong During Wait for Final Order

Though the FCC approved Ligado Networks’ request to use satellite frequencies to support terrestrial 5G, opposition to the move remains firm as everyone waits to see what kind of measures are included in the final decision to protect GPS from interference.

By Dee Ann Divis

Homeland Security Offers Free Testing for GPS Equipment

The Department of Homeland Security is offering to test GPS equipment used in critical infrastructure to see how resilient it is against spoofing.

The effort is part of the GPS Testing for Critical Infrastructure or GET-CI program supported by DHS’s Science and Technology Directorate.

By Dee Ann Divis

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GPS

New GPS Performance Document Gives Glimpses of L2C, L5, Expanded ...

Javad Ashjaee, 1949-2020...

The New Flex Power Mode: From GPS IIR-M and IIF Satellites with Extended Coverage Area

Washington View: U.S. Government Deals Body Blow to Its Own Military Security

Knives Out

Contract to Plan Next Phase of EGNOS Evolution

Photonic Technology Brings a Cutting Edge to Inertial

Connected Ambulance Uses GPS to Tightly Coordinate Advanced Comms for Emergencies

Massive Online Open Course on GPS Still Available for Those in Lockdown — and Those Who Aren’t

Receiver with Inertial for UAVs

New Marine Receiver Delivers Ultra-precise Position

Qinertia PPK Software From SBG Systems Now Open to all IMUs, GNSS Receivers

FCC Chooses “Broadcast-Till-You-Break-It” GPS Interference Standard

Opposition to Ligado Plan Remains Strong During Wait for Final Order

Homeland Security Offers Free Testing for GPS Equipment