Detect, Locate, and Mitigate GPS Threats

Phase I effort will develop an innovative Exploitation of Discrete GPS interference for Enhanced navigation (EDGE) technology. EDGE uses existing antenna configurations and RF front-ends on a missile platform (or similar platforms) to detect and locate GPS interferers (jammers and spoofers). Localized interference sources are then exploited for navigation, targeting, and guidance. Common approaches are passive in that they only attempt to reduce (mitigate) any harmful effect of emitters on GPS receivers without realizing the potential that these interference sources could contribute to a hybrid navigation solution. To fill this gap, we go one step further and hereby propose a proactive strategy that explicitly makes use of GPS interferers to aid navigation when GPS is challenged, that is, to utilize stationary interference signals as signals of opportunity for navigation aiding (navaid). In Phase I, the proposed EDGE technology will be developed with its enabling techniques formulated into post-processing software prototypes and evaluated using a combination of simulated and experimental data. A prototyping approach of EDGE will also be developed for Phase II.