![]() ![]() These satellites offer a number of advantages over GPS satellites. Rather than relying on the small handful of GPS satellites circling in Earth's higher orbits, his team is eyeing the more abundant and closer-to-home satellites in Earth's low orbit, such as the Starlink fleet. "We are over-relying on these systems, despite their known limitations."įortunately, Kassas and his colleagues have devised a novel substitute for GPS. "There is an urgent need to find an alternative robust and accurate navigation system to GPS," says Zak Kassas, an associate professor at University of California, Irvine, and Director of US Department Transportation Center for Automated Vehicles Research with Multimodal AssurEd Navigation (CARMEN). The disruption to so many critical operations would be catastrophic, costing some countries more than $1 billion USD a day. ![]() If these systems were hacked, jammed, or otherwise failed, there are no back up options. Today there are multiple satellite navigation systems such as Europe's Galileo or China's BeiDou, in addition to the original GPS constellation, but they all operate in a similar way with similar strengths and weaknesses. But are we being reckless by putting all of our eggs in one basket? It is used for personal navigation, commercial aviation, military operations, monitoring of crops and wildlife, and so much more. Life without GPS seems almost unimaginable these days. ![]()
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