LTE Passive Radar is an advanced passive surveillance system that detects and tracks aerial and ground targets by processing reflections from non-cooperative illumination sources, such as commercial LTE communication signals. Unlike conventional radars, it operates without an active transmitter, ensuring completely covert surveillance..

Developed indigenously by Raddef, the system is based on state-of-the-art Time Difference of Arrival (TDOA) technology. With 360° azimuth coverage and 70° elevation coverage, it provides early warning of approaching UAVs and other targets from all directions. Its cost-effective and discreet nature makes it ideal for long-term perimeter and area surveillance.

The LTE Passive Radar exploits existing commercial LTE transmissions as illuminators of opportunity. By analyzing reflected signals from targets and applying TDOA-based processing, the system accurately determines the presence, location, and movement of drones, aircraft, and vehicles—without emitting any detectable radiation.

This passive operation makes the system immune to detection, interception, or anti-radiation attacks.