The Department of Defense (DOD) is seeking proposals for their SBIR 24.1 BAA solicitation. The specific topic of the solicitation is "Context-Aware RF Electromagnetic Surveying for Exploiting Signals of Opportunity" and is under the branch of the Air Force (topic number AF241-0004).
The objective of this solicitation is to develop a capability to use 3D environment models and RF propagation patterns to develop low-latency Convolutional Neural Networks (CNNs) for RF geolocation and signal-type identification. The technology aims to be run in parallel on low SWaP (Size, Weight, and Power) RF Electronic Spectrum Monitoring (ESM) antenna arrays for Class I and Class II UAS (Unmanned Aerial Systems).
The project will focus on developing algorithms that autonomously or semi-autonomously construct detailed 3D RF propagation models using available 3D geometry-and-texture models of real-world locations. These RF models will be used to estimate candidate 3D RF source locations and signal types from a low SWaP Ultra-Wide Band antenna array. The frequency ranges of interest for geolocation include 0.8 GHz - 6 GHz, and solutions extending this range without sacrificing SWaP or performance are welcome.
The geolocation capabilities developed in this project will be part of a larger Electronic Surveillance Monitoring (ESM) algorithm suite, which can provide search, intercept, collect, classify, geolocate, monitor, copy, and exploit capabilities.
The project will be conducted in three phases. In Phase I, a feasibility study, survey of relevant technologies, and prototype algorithms will be conducted and reported. Phase II will involve implementing a selected algorithm and approach and delivering a prototype payload that can be integrated with a UAS. The performance of the prototype will be evaluated for different geolocation contexts. Phase III will focus on transitioning the prototype technology to a fully-developed commercial or warfighter solution.
The solicitation is currently closed, and more information can be found on the DOD SBIR 24.1 BAA topic page on the SBIR website (https://www.sbir.gov/node/2479841).