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GPS

GPS Week Number Roll Over

An accurate accounting of time is of critical importance to nearly every modern organization. Because of its low cost and universal availability, The Global Positioning System (GPS) has become the standard time keeper for many commercial users across the globe.

S&T FRG OPSR

The DHS Science and Technology Directorate’s Office for Public Safety Research (OPSR) applies multidisciplinary research and development to strengthen the safety and effectiveness of first responders, the Homeland Security Enterprise (HSE) and of state and local partners.

GPS Program

Accurate position, navigation and timing (PNT) is necessary for the functioning of many critical infrastructure sectors. Precision timing is particularly important and is mainly provided through the Global Positioning System (GPS). However, GPS’s space-based signals are low-power and unencrypted, making them susceptible to both intentional and unintentional disruption.

S&T FRG GPS Vulnerabilities for Critical Infrastructure

Accurate position, navigation and timing (PNT) is necessary for the functioning of many critical infrastructure sectors. Precision timing is one aspect that is particularly important, with one microsecond level or better synchronization often being required by numerous infrastructure systems, such as the electric grid, communication networks and financial institutions. Currently, the primary source of distributed and accurate timing information is through the Global Positioning System (GPS). However, GPS’s space-based signals are low-power and unencrypted, making them susceptible to both intentional and unintentional disruption.

Critical Infrastructure

Critical infrastructure includes the vast network of highways, connecting bridges and tunnels, railways, utilities and buildings necessary to maintain normalcy in daily life. Transportation, commerce, clean water and electricity all rely on these vital systems.

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