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U.S. Must Hustle On Hypersonics, EW, AI

China is besting the United States in key military technologies like hypersonic missiles and electronic warfare, Gen. Paul Selva, vice-chairman of the Joint Chiefs said today. We can still catch up, he predicted. What about Artificial Intelligence? That’s too close to call, said former deputy Defense Secretary Bob Work, so we’d better get a move

DARPA Pursuing Global Positioning System Alternatives

The Defense Advanced Research Projects Agency is looking to develop alternative positioning, navigation and timing capabilities. Dave Tremper, a program manager at the agency’s strategic technology office, said relying solely on GPS provides users with a single point of failure. “GPS is so good that it’s kind of knocked all of the other players off

Identification of Scintillation Signatures on GPS Signals

Ionospheric scintillation originates from the scattering of electromagnetic waves through spatial gradients in the plasma density distribution, drifting across a given propagation direction. Ionospheric scintillation represents a disruptive manifestation of adverse space weather conditions through degradation of the reliability and continuity of satellite telecommunication and navigation systems and services (e.g., European Geostationary Navigation Overlay Service,