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Inside GNSS magazine • Volume 12 Number 1

January/February 2017

Online News, Articles, and Features

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Cover Story

Multi-Receiver GPS-Based Direct Time Estimation

for PMUs

While phasor measurement units depend on GPS for precise time and synchronization, GPS L1 C/A signals are vulnerable to external timing attacks because of their low power and unencrypted signal structure. Here the authors propose a novel multi-receiver direct time estimation algorithm using the measurements from multiple receivers triggered by a common clock.

Technical Article

L5 RTK Over India:


A team of researchers in Australia provide the first assessment of L5 integer ambiguity resolution and positioning performance for the fully operational Indian Regional Navigation Satellite System (IRNSS) as a standalone system and also in combination with GPS.

Columns & Editorials
Working Papers

Interference Localization from Space

Part 2: Applications

Detrimental effects of RF interference costs the GNSS industry millions of dollars each year. Among the various strategies adopted to address the problem, interference localization is becoming a priority because it provides authorities with the location of the interference sources and time of the interference events.

Thinking Aloud

No Sudden Moves

The unpredictability of the new unknown

Perhaps it will be enough to mention that Twitter ultimately depends on effective and stable GPS timing. (Yes, we can assert that caveat in far less than 140 characters.)

GNSS & the Law

State of Play in China

Strategy, Governance, Policy, and Law of the BeiDou Navigation Satellite System

Bearing in mind the mature technology and the policy of free access to open signals provided by GPS, many questions arose about why China should make substantive efforts to develop its own GNSS.

Washington View

GPS Roundup: Congress Reopens for Business

GNSS Solutions

Is it possible to build a low-cost system to detect and locate a single GNSS jammer in near-real time?

GNSS Hotspots

GNSS Hotspots

Tracking illegal logging in Romania, autonomous mining, ancient calendars and Canadian cows

360 Degrees
Industry View
Jammer Dectector
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