Mystery GPS jammer in Iran becomes test for NASA satellites’ capabilities
Summary
Ars Technica reports that NASA space-based sensors CYGNSS and NISAR can locate GPS jammers by analyzing how interference affects GPS signals and radar imagery. In tests near Shiraz, Iran, CYGNSS pinpointed the jammer within 4.33 km (CEP 3.48 km) and NISAR within 6.26 km (CEP 6.88 km), with a fused approach yielding 4.69 km (CEP 7.85 km). The work demonstrates the potential of satellite data to monitor GPS interference for aviation and maritime safety, though near-real-time localization remains challenging.