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Inside GNSS magazine • Volume 10 Number 5

September/October 2015

Online News, Articles, and Features

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Cover Story
Washington View

New Fiscal Year Begins with Unfinished GPS Business

Summer vacation is over. Time to go back to work.

Articles
Technical Article

GLONASS for Precise Navigation in Space

On Board Resurs-P LEO Satellite

The Russian Federal Space Agency is evaluating methods for improving the GLONASS performance based on the current generation of satellites. This includes assessing the performance of the ground reference network as well as using FDMA signals to precisely determine the orbits of a remote sensing satellite.

Technical Article

GPS Confidential

Enabling Proximity Detection While Preserving Location Privacy

Proximity-based services are commonly used to help a user interact with other users nearby. However, these services endanger the privacy of users when the location information is provided to the service provider. This article proposes a novel private proximity detection scheme based on partial GPS measurement information.

Technical Article

Single Antenna, Dual Use

Theory and Field Trial Results for Aerial Applications of Anti-Jam and Spoof Detection

Introducing a low complexity mechanism for generating radiation pattern nulls and beams without requiring any additional hardware or signal processing blocks beyond those already inherent to GPS receiver systems.

Technical Article

Urban Localization and 3D Mapping Using GNSS Shadows

Urban localization using GNSS is notoriously imprecise due to blockage of satellite signals by tall structures. However, this very phenomenon of blockage can be exploited to derive valuable location information by “shadow matching” against 3D maps of the environment.

Columns & Editorials
Thinking Aloud

Let Us Now Praise

Regional Systems Are Not Waiting Idly in the Wings

As last year’s disappearance of Flight MH370 reminded us, the Indian
Ocean region in which IRNSS operates is large and largely unchartered.
So, too, the Western Pacific surveyed by QZSS.

Human Engineering

John Raquet: A Family Affair

Achieving the worklife/family balance

GNSS Hotspots

GNSS Hotspots

I Love My Job, But..., Mediterranean Rescue, Predicting Tremors and Robot, Beware Human.

Thought Leadership Series

Alternative PNT

Assured Service, GNSS Backup

For all its remarkable qualities, GNSS has not turned out to be a one-size-fits-all panacea. A search for “just-in-case” options is under way.

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