COLOGNE, Germany — The German Air Force has begun testing so-called passive radar as a complementary surveillance technique for ground-based air defense formations, aimed at helping covert operations ...

Add Yahoo as a preferred source to see more of our stories on Google. GRAZ, Austria — German sensor specialist Hensoldt has released a standalone package of its Twinvis passive radar, a technology ...

British engineers from University College London have developed a passive radar system that can see through walls using the WiFi signals generated by wireless routers and access points. The system, ...

Sean Peters is leading a major multi-institutional initiative to develop power efficient passive radar systems that could peek under the surface of Mars. Peters has earned a $2.45 million, three-year ...