U.S. military aims to overcome GPS' weaknesses
Washington (UPI) Jul 25, 2013 - The U.S. military is exploring five new location technologies for use in areas when GPS is unavailable. The technology programs are the brainchild of the U.S. Defense Advanced Research Projects Agency, the Pentagon's scientific think thank and technology incubator. "It is difficult to imagine the modern world without the Global Positioning System, which provides real-time positio ... more

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