Defense Advanced Research Projects AgencyTagged Content List

Communications and Networks

All manner of sending, receiving, connecting and protecting information

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Modern expeditionary military missions generate and exchange massive amounts of data that are used to produce situational awareness and guide decision-making. Much of the data must travel long distances along backbone communications networks composed of high-capacity links that interconnect command centers.
The Advanced RF Mapping program seeks to provide radio frequency (RF) situational awareness using low-cost sensors distributed over the battlespace. The sensors include devices deployed for other purposes, such as tactical radios. The vision is that all RF devices in theater will support RF situational awareness when not performing their primary mission.
Precise timing is essential across DoD systems, including communications, navigation, electronic warfare, intelligence systems reconnaissance, and system-of-systems platform coordination, as well as in national infrastructure applications in commerce and banking, telecommunications, and power distribution. Improved clock performance throughout the timing network, particularly at point-of-use, would enable advanced collaborative capabilities and provide greater resilience to disruptions of timing synchronization networks, notably by reducing reliance on satellite-based global navigation satellite system (GNSS) timing signals.
The continued growth in unmanned, sensor, and networked devices is expected to drive the need for larger, more capable and more diverse communications systems. Among other enhancements, these systems must improve jam-resistance and low probability of detection to keep pace with adversaries’ growing electronic sophistication and must adapt to fast-changing operational environments. By contrast, today’s military communications architectures are static and inflexible.
Defense forces rely on electromagnetic dominance for command, control, intelligence, surveillance, reconnaissance, and related applications that use the electromagnetic spectrum. Similarly, spectrum use by our adversaries, coupled with extensive commercial use, yields an increasingly congested space, time and frequency environment.