LTE Passive Radar
Radar Type
LTE Passive Radar
Operating Principle
Passive Radar using LTE Signals (TDOA)
Coverage
360° Azimuth · 70° Elevation
Primary Applications
Border Surveillance · Airports · Coastal Areas · Critical
Infrastructure
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Overview
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.
Passive Detection Using LTE Signals
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.
Applications & Use Cases
LTE Passive Radar is ideally suited for:
International border and coastal surveillance
Airport and airspace monitoring
Protection of prisons and large industrial facilities
Counter-UAS and low-altitude airspace security
Perimeter surveillance for sensitive installations
Gallery
Key Features
Target Detection and Tracking
Detects and tracks aircraft, vehicles, and drones using LTE
signals without an active transmitter.
Covert Surveillance & Security
Fully passive operation enables stealth monitoring for
military, border security, and counter-drone missions.
Cost-Effective & Weather-Resistant
Utilizes existing LTE infrastructure, reducing system costs
while ensuring reliable all-weather performance.
Wide Area Coverage
360° azimuth and 70° elevation coverage for continuous
situational awareness.
Indigenous & Scalable Design
Fully indigenous system, easily scalable and integrable with
other surveillance technologies.
