[20210607]IF11426_国防部反无人驾驶飞机系统.pdf

https:/crsreports.congress.gov Updated June 7, 2021Department of Defense Counter-Unmanned Aircraft SystemsUnmanned aircraft systems (UAS), commonly called drones, have proliferated rapidly and are available to nation states and to nonstate actors and individuals. These systems could provide U.S. adversaries with a low-cost means of conducting intelligence, surveillance, and reconnaissance missions againstor attackingU.S. forces. Furthermore, many smaller UASs cannot be detected by traditional air defense systems due to their size, construction material, and flight altitude. As a result, in FY2022, the Department of Defense (DOD) plans to spend at least $636 million on counter-UAS (C-UAS) research and development and at least $75 million on C-UAS procurement; this represents a $134 million overall increase from FY2021. As DOD continues to develop, procure, and deploy these systems, congressional oversight of their use may increase, and Congress may have to make decisions about future authorizations, appropriations, and other legislative actions. C-UAS Technology C-UAS can employ a number of methods to detect the presence of hostile or unauthorized UAS. The first is using electro-op