Disasters such as hurricanes, earthquakes, and tsunamis often cause widespread communication outages, and there is a need to quickly assess which areas have been impacted so that teams such as Tactical Operations can optimize the delivery and installation of emergency communications infrastructure. By placing a software defined radio (SDR) in low earth orbit on a satellite and processing the data to geolocate radio frequency (RF) signals, heat maps may be generated depicting "ground truth" RF changes, providing timely and accurate data to inform decision-making for emergency communications deployments. This, in turn, will serve as a force multiplier, amplifying the positive impact that can be made by first responders in disasters.
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Bharania, Rakesh; Johnson, Chandler; and Li, Dustin, "CONNECTIVITY ASSESSMENT SURVEY FOR TECHNOLOGY EMERGENCY RESPONSE (CASTER)", Technical Disclosure Commons, (January 11, 2019)