SENSORS & SIGNAL PROCESSING
STR’s experienced team employs its skills and expertise in sensor systems, signal processing algorithms, and real-time embedded computing to design, develop, and deliver solutions for national security applications.
Applications include:
  • Sensor system development
  • Radar and sonar signal processing
  • Signals intelligence
  • Electronic attack and protection
  • Electromagnetic propagation, modeling and simulation
  • Collection management and optimization
  • Feature-aided tracking and classification   
   Advanced Systems Development
   Analysis & Decision Systems
   Cyber Physical Systems
   Intelligence Tools & Applications
   Video & Image Understanding
Featured Technology: Wind-Turbine Induced Clutter Mitigation
When wind turbines are located in close proximity to each other they can have an important impact on air surveillance radars. Air surveillance radars detect moving objects (e.g. aircraft) by filtering out stationary objects using the Doppler effect. Since wind turbines rotate they impart a Doppler shift on the radar signal. As a result, nearby wind farms can desensitize radar and cause false targets to appear on the radar screen. This clutter also causes targets to escape detection.

STR Approach
We use advanced time-frequency signal processing techniques to discriminate target and clutter signatures. We are using these techniques to develop new algorithms for the Air Force Research Laboratory (AFRL) that suppress clutter to enable detection and tracking of aircraft near wind farms.