The authors assess the costs associated with realistic threats to domestic, nonmilitary uses of the Global Positioning System (GPS), and consider possible additions to the positioning, navigation, and timing ecosystem in light of those costs.
May 17, 2021
This report describes the algorithms used in the tanKer Air Refueling Model for Analysis (KARMA) and explains how to use the model. KARMA simulates the extent to which a tanker force can aerially refuel combat aircraft in a denied environment.
Sep 4, 2019
Activist groups are seeking improvements in the balloons they use to carry political, religious, and humanitarian materials into North Korea. This report assesses the technical state of balloons and drones, along with plausible improvements.
Apr 2, 2018
In previous decades, going back to the Korean War, the South Korean government used to send balloons carrying propaganda into North Korean territory.
Is powering an ultra-high-altitude unmanned aerial vehicle with a laser beam a practical possibility?
Jun 9, 2011