AST Feb 2020 Magazine AST Feb 2020 Magazine | Page 32

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February 2020 - Edition 41
secure time servers that are ap-
proved for use in government net-
works, are effective ways to pre-
vent PNT cyber-attacks
cyber-attacks.. complexity of threat scenarios
and the level of false alarms that
can be tolerated,
tolerated , both of which
affect the solution’s cost.
Detection Mitigation
Software and hardware-based
technologies are available to de-
tect signal jamming and spoof-
ing, , providing real time alerts
ing
to effectively reduce critical infra-
structure vulnerability. GPS threat detection can suffice
to address vulnerabilities, provid-
ed that alternative PNT sources are
available to take over when GPS
is compromised.
Alternative PNT sources like os-
Choosing the right solution in- cillators, inertial sensors or digital
volves a trade-off between the maps are only effective if GPS
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