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#MobilityMonday: Amid growing signal interference, the US — inventor and custodian of GPS — is lagging behind other countries The Global Positioning System (GPS) is a space-based radio-navigation system developed for the US Army in the 1970s that was freed from all civilian restrictions by the early 2000s. Today, GPS is still owned by the US Government and operated by the United States Air Force. Most notably, GPS signals are critical to modern navigation and can pinpoint any 3D position to meter-level accuracy and time to the 10-nanosecond level (https://lnkd.in/dkMvMrfe). But GPS isn’t just used for mapping and navigation; it’s also used to synchronize computer systems, which has major ramifications on financial trading, data centers, and more. For these reasons and more, the increasing disruptions to the GPS network should be of major concern. Especially in the past two years, GPS jamming and spoofing (the once-rare practice of sending false location signals making someone think they are somewhere else) have been used for both offensive and defensive purposes (see https://bit.ly/3zv1bSp). Amid the war in Ukraine, Russia has interrupted GPS services in Eastern Europe and the Baltics (see https://lnkd.in/dsHmKaNh). In Israel, the Israel Defense Forces has jammed and spoofed GPS signals to disrupt guided munitions launched by Hezbollah and Hamas (see https://lnkd.in/dSM3J-Qj). And GPS interference has major effects on the modern economy outside of military uses. In the first half of 2024, more than 60k commercial flights have been hit by spoofed GPS signals. A UK study reported that a 5-day disruption of satellite signals could cost that country alone losses of more than $6B (see https://bit.ly/3XSHPAQ). Despite these threats, GPS satellites are getting old, with many far past their intended lifespan of 8-15 years. The United States Space Force's recent request for a $77M allocation to reinforce GPS against spoofing attacks was blocked by Congress (see https://lnkd.in/d7WzMuTj) In their stead, other countries are developing their own, more sophisticated alternatives: the European Galileo system requires signal authentication and China’s Beidou system has the most satellites in orbit for a GNSS system. For better or for worse, Russia’s GLONASS system is becoming just as outdated as the US’s GPS (see https://yhoo.it/3XPun0L). Given the US Government’s dawdling when it comes to GPS upgrades, corporates and startups are increasingly developing backup capabilities that protect the integrity of global navigation and location services. Without a concerted effort by US governmental authorities to revitalize GPS and protect its usage, others will fill the void, so we should all hope they will be benevolent players. #GPS #GNSS #satellite #navigation #jamming #spoofing #NASA