DAA sends out radar pulses to automatically detect airborne objects, such as aircraft, and predict potential midair collisions. DAA technology is a key step in the process of integrating unmanned aerial vehicles into manned airspace.

NanoSAR detect-and-avoid radar detects the presence of airborne obstacles and predicts and avoids potential midair collisions. Using radio waves reflected from objects, radar systems naturally obtain information on the distance to those objects. Radio waves from radar systems naturally penetrate visual obstructions such as clouds, fog, smoke, and precipitation, so this same information can be collected even at night and in low-visibility conditions.

Detect-and-avoid radar systems use multiple receive antennas to add elevation and location information to the already available information on range. Using advanced algorithms to compare the signals collected, the system can detect airborne objects and calculate the location and trajectory of those objects. Since the system knows its own location, it can predict when the trajectory of an airborne object is likely to result in a midair collision.

Data from the detect-and-avoid radar system can be visually displayed over a map for a manned pilot or sent directly to an autopilot system for manned or unmanned aircraft. When a potential midair collision is predicted by the system, alerts can be sent to the pilots or autopilot systems with enough warning to move the aircraft, either manually or automatically, to avoid the midair collision.

IMSAR’s detect-and-avoid radar is designed with minimal size, weight, and power (SWaP) to fit on even small Unmanned Aerial Vehicles (UAVs) to allow UAVs and manned aircraft to share the same airspace safely.



IMSAR systems can perform multiple applications in a variety of industries. Typical uses for IMSAR’s ISR solutions can include:

  • Reconnaissance Missions
  • Wildland Fire Studies
  • Minimize Asset Damages
  • Search & Rescue Operations
  • Brown-out Visibility
  • Increase Personnel Safety
  • Wildland Fire Monitoring
  • White-out Visibility
  • Emergency Rescue

For more information about DAA and other products, contact us at or call IMSAR sales at 801.798.8440.