The Department of Defense highlights the challenge faced by...
The Department of Defense highlights the challenge faced by the government of getting enough spectrum available for all of the military’s unmanned systems, including drones and unmanned ground systems. The “Unmanned Systems Integrated Roadmap” cites broader demands by spectrum-dependent systems…
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(SDS) used by the military (http://1.usa.gov/1kWnzEc). “U.S. military operations are now occurring in many parts of the world where adequate spectrum is not available for [command and control], sensor, and data link systems,” DOD said. “There is a significant increase in the number of SDS the United States, our partners, and our coalition forces deploy to address current, and may want to deploy to address expected future, mission areas. In addition, these SDS collect more information, and missions often require greater bandwidths to send their information directly to warfighters.” Areas where the military has to operate are becoming more spectrally “noisy” in general “because of increasingly cluttered and hostile spectrum environments.” Dynamic spectrum access (DSA) as promoted by the Defense Advanced Research Projects Agency can help, but isn’t a cure-all, DOD said. “DSA offers the ability to change frequency band use based on the actual use or nonuse of certain bands by other adjacent SDS,” the report said. “Developmental challenges include susceptibility to countermeasures, costs of integrating with existing systems, developing standards (including regulatory aspects), and cosite Interference.”