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GNSS (all systems)

January 8, 2018

Second ICG Workshop on GNSS spectrum protection, interference detection and mitigation

The second International Committee on GNSS (ICG) workshop on GNSS interference, detection and mitigation will take place at the U.S. Coast Guard Base, Sand Island, Honolulu Harbor on Friday and Saturday, April 19-20 and will finish up on Monday, April 22.

It is a follow-up meeting to the first workshop that took place in June 2012 in Vienna, Austria.

The workshop will be held in conjunction with the Institute of Navigation’s Pacificl

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By Inside GNSS
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January 1, 2018

What is navigation message authentication?

Q: What is navigation message authentication?  

A: As of today, all open civil GNSS signals are transmitted in the clear, conforming to interface specifications that are fully available in the public domain. Receivers will accept any input that conforms to the specifications and treat it as if it came from a GNSS satellite. Combined with the extremely low power levels of GNSS signals this makes it almost trivially simple to spoof a GNSS receiver.

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By Inside GNSS

How Effective Are Signal Quality Monitoring Techniques

Multipath is a major phenomenon that degrades the integrity of GNSS-based navigation services. Under multipath, a receiver Delay-Lock Loop (DLL) does not correctly estimate the actual peak of the correlation curve, resulting in ranging errors. To overcome this effect, mitigation techniques have been developed, a detailed discussion of which

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By Inside GNSS
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December 19, 2017

Honeywell IMUs Bringing Pinpoint Navigation Accuracy to New Industries

The HG4930 is designed to meet the motion sensing needs of a range of applications across various markets. Photo courtesy of Honeywell Aerospace.

Long established as a key component within defense applications, navigation technology from Honeywell is now available to a wide range of new industries that can benefit from the advanced precision and performance of reliable, rugged and easy-to-install Inertial Measurement Units (IMUs).

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By Inside GNSS
December 15, 2017

Harris Corp. Delivers Fourth GPS III Satellite Navigation Payload; Establishing a Proven, Reliable Production Cadence

Completing the fourth delivery of 10 navigation payloads for Lockheed Martin’s GPS III satellites, Harris Corporation delivered the advanced navigation payload for the fourth GPS III Space Vehicle (SV04) to Lockheed Martin on October 29 – establishing a proven and reliable production cadence. Harris delivered two payloads in 2017 and is committed to delivering four more in 2018.

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By Inside GNSS
December 7, 2017

Ariane 5 Mission with 4 Galileo Satellites set for Dec. 12 Liftoff

UPDATE: Today’s the day. Check back to the Inside GNSS website for updates on today’s launch.

A European Ariane 5 rocket followed dual rail tracks across the Guiana Space Center in South America on Monday on the way to its launch complex Monday, a day before today’s scheduled blastoff with four satellites to expand the Galileo navigation network. Also, you can follow the launch live at Spaceflight.com.

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By Inside GNSS
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