Projects
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![A prototype reflectarray faces a feed horn in an anechoic chamber.](/sites/default/files/styles/list/public/project/image/2024-10/529881-003_rs_0.jpg?h=c3635fa2&itok=UfYROYoW)
Mitigating cellular network congestion through adaptive beamforming with reflectarrays
A low-cost, reconfigurable radio receiver architecture provides an alternative approach to filter out unwanted transmissions in millimeter-wave (MMW) signals.
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![An illustration of two self-driving cars detecting nearby objects and sharing sensor data using the same radio-frequency band.](/sites/default/files/styles/list/public/project/image/2024-05/TVO_Concord_CarConceptGraphic_IanWTVO.png?itok=YtK05u3E)
Dual-Use Waveforms for Radar Detection and Wireless Communication
New waveforms enable efficient spectrum sharing between radars sensing moving objects and wireless communications systems transmitting data.
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![a photo of a small satellite in a studio](/sites/default/files/styles/list/public/project/image/2023-08/TROPICS.png?h=5463d0de&itok=1Rk-6x3n)
TROPICS
A constellation of small satellites is collecting rapidly refreshed weather data to advance studies of hurricane structure and intensity and improve forecasts.
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![A schematic of a burning building with firefighters, firetrucks, and uncrewed aerial vehicles on the scene. Arrows link between them, each within concentric circles, to signify a radio-frequency network.](/sites/default/files/styles/list/public/project/image/2023-06/RF%20sensing%20firefighter%20schematic.jpg?itok=oV3yZBe_)
Radio-Based Navigation for Environments Without GPS
With the goal of enabling navigation in environments where GPS is unavailable or unreliable, researchers are developing algorithms to fuse information across a network of small, low-power radio-frequency devices.
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![A researcher stands on a laptop. In front of him are a few small radios, and a large projector screen showing data.](/sites/default/files/styles/list/public/news/image/2022-05/LLDARt.png?itok=Q3-ogmJC)
Low-Cost Localization Using Distributed Adaptable-Response Transponders
A deployable navigation network of small, low-cost radio transponders can help track the locations of first responders during rescue operations.
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![A photo of two operators on an aircraft using the Laboratory's Airborne Radar Testbed to command a radar to test and demonstrate intelligence, surveillance, and reconnaissance radar concepts.](/sites/default/files/styles/list/public/project/image/2022-04/AR21_ISR_ART1.jpg?itok=bHfv1Plc)
Airborne Radar Testbed
An aircraft outfitted with an advanced open-architecture radar system provides a platform for testing new radar technology.
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![three people stand on a big dirt pile, outside, with blue sky in the background. One researcher is holding a laptop, which another looks at. The third person is holding a remote, controlling a robotic vehicle also on the dirt pile.](/sites/default/files/styles/list/public/project/image/2021-08/521383-009D.jpg?h=41f55a5b&itok=c7t6A2g-)
Motion Under Rubble Measured Using Radar
Our see-through-wall sensor is a lightweight, portable technology that peers through rubble and debris of a disaster site to detect survivors.
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![Photo of researchers launching the weather balloons](/sites/default/files/styles/list/public/project/image/2020-05/518599-123D_0.jpg?itok=fkGh1RZD)
Balloon-Based Resilient Communications
High-altitude balloons used as beyond-line-of-sight relays would provide communications nodes if satellite communications could not offer coverage in contested environments.
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![Ray tracing that simulates wave propagation is used to build performance models for high-frequency radar and communication systems.](/sites/default/files/styles/list/public/project/image/2018-04/SpaceWx-1.png?h=801a2b6e&itok=Gl4tgmSq)
Applied Space Weather
New algorithms improve the resilience of satellite and RF systems to impacts from space weather.
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