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DARPA to Develop Advanced Tiny Chip-Scale Atomic Clocks for Military PNT Applications

Defense Advanced Research Projects Agency (DARPA) is presently working on an advanced version of its first-generation, battery-powered, miniature chip-scale atomic clock (CSAC) with 1000x performance improvements for positioning, navigation, and timing (PNT) applications. DARPA’s Atomic Clock with Enhanced Stability (ACES) program aims to build the next-generation atomic clock owing to the limitations of the now

Army Gets a Move on ”Pseudolites” and Other Non-GPS Navigation

Aware of the potential for GPS and other signals being disrupted in the electromagnetic spectrum, the military has been researching ways to get location and navigation information when satellite signals are degraded. One possibility? A “pseudolite,” which is what it sounds like—a pseudo satellite that operates low to the ground, sending stronger signals than soldiers