Current Issue - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

COVER STORY


ATM: Beyond Time for Change

To ensure safety, particularly as UAS become more common in the airspace, it’s critical to begin sharing individual satnav measurements as part of collision avoidance.

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ARTICLE


Navigating Emergencies with a Low-RF CARS

The prototype, consisting of a single Tx-Rx communication link, was tested in indoor-to-indoor, outdoor-to-outdoor and outdoor-to-indoor communication scenarios and in both static and dynamic conditions. The outdoor-to-indoor results indicate that, with further development, the Civilian and Assets Recovery System (CARS) is a promising navigation and positioning technology.

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The HASARDS Project: Leveraging HAPS to Benefit Search and Rescue Operations

The HAPS Augmented Search-And-Rescue Demonstration System (HASARDS) project could provide localization, tracking, georeferenced imagery and communication relay, complementing the existing system to help better execute SARs missions.

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Launching Xona’s Ravens: Commercial Satnav from LEO

The startup plans to launch its first demonstration mission on SpaceX’s Transporter 5 in May, with the goal of displaying high-quality commercial PNT LEO signals from a payload suitable for small satellite deployment.

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COLUMNS & EDITORIALS


Washington View – Deja Vu All Over Again: Ligado’s 5G Network Set For Collision Course With GPS? 

Will the network, which some are still fighting, be ready for a September rollout, and if so, what are the implications for GPS and the people who rely on it?

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Brussels View: EU Space Community Talks Security, Defense and Galileo

Speakers at the 14th European Space Conference in Brussels discussed the need to defend EU assets against unfriendly attacks. Recent events in Eastern Europe would seem to lend force to such concerns, as the European Union makes headway toward the intersection of civil infrastructure and security and defense.

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The Inertialist: Complementary Sensor Fusion

This is the most efficient way to combine INS with aiding data. Here’s a look at the key principles and benefits.

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Will We Have a Negative Leap Second?

Why the timekeeping and GNSS communities should start preparing. 

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