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