Today, the President accepted the recommendation of the Department of Defense to end procurement of Global Positioning System (GPS) satellites that have the capability to intentionally degrade the ...

NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of ...

Global Navigation Satellite Systems (GNSS) have revolutionised location-based services by providing positioning information through satellite signals. In urban environments, however, positioning ...

Global Navigation Satellite System (GNSS) positioning techniques have evolved significantly over recent decades, spanning from traditional single-frequency methods to advanced multi-constellation and ...