Ground-Based Detect-And-Avoid (GBDAA)

The HARRIER System

DeTect’s HARRIER  Ground-based Detect-and-Avoid (GBDAA) system is based on DeTect’s HARRIER Air Surveillance Radar technology and provides long range monitoring of airspace with automatic aircraft risk advisories to extend UAV operations beyond visual line-of-sight (BVLOS).  HARRIER has been used for UAS ground-based sense and avoid since 2008 by Unmanned Aerial Systems developers and operators on projects throughout the US and Europe.  Systems are available in fixed and mobile configurations including custom designs for installation on customer-provided vehicles and for buildings and towers. The HARRIER GBSAA includes a wide range of advanced features and functionality:



  • Solid-state Doppler S- or X-band radar with 50,000 hour MTBF
  • Detection of cooperative (transponder equipped) and non-cooperative aircraft to 20+ miles
  • Secondary Traffic Advisory System (TAS) and Automatic Dependent Surveillance–Broadcast (ADS-B) interrogators for cooperative aircraft detection and data acquisition
  • Automatic target type classification using DeTect’s Intelligent Sensor™ technology
  • Multi-functional for simultaneous detection of UAVs, drones and conventional aircraft (ultralights, helicopters, small-to-large aircraft)
  • Optional cue-to-target EOIR camera integration
  • Automatic operation with user-definable fixed or UAV-following risk alert zones and intrusion perimeters
  • Full remote control and real-time information display (radar and video) to multiple users through secure network and web displays
  • Real-time display to wireless and cellular devices (smart phones, tablets)

TDS-HARRIER GBSAA US 180827 (1)