Cracking the secret codes of Europe's Galileo satellite

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Artistacutes impression of GIOVE-A in orbit. Credits: ESA
Artist's impression of GIOVE-A in orbit. Credits: ESA

Members of Cornell's Global Positioning System (GPS) Laboratory have cracked the so-called pseudo random number (PRN) codes of Europe's first global navigation satellite, despite efforts to keep the codes secret. That means free access for consumers who use navigation devices -- including handheld receivers and systems installed in vehicles -- that need PRNs to listen to satellites.


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