5 Breakthrough DARPA Technologies Beyond GPS

InformationWeek: When it comes to military operations, GPS is not always a reliable technology for positioning, navigation, and timing (PNT). Yet PNT capabilities are essential to targeting missles; navigation for land, sea, and air forces; and precision in military operations overall. That's why the Defense Advanced Research Projects Agency (DARPA) has created several programs to develop other approaches that offer more dependable and accurate PNT capabilities when GPS isn't working properly.

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