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Wind Turbine Clutter Mitigation for Terminal Air Traffic Control (ATC) Radars

Award Information

Department of Defense
Award ID:
Program Year/Program:
2013 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Systems & Technology Research
400 West Cummings Park, Suite 5850 Woburn, MA -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2013
Title: Wind Turbine Clutter Mitigation for Terminal Air Traffic Control (ATC) Radars
Agency: DOD
Contract: FA8650-13-C-1597
Award Amount: $748,742.00


ABSTRACT: Wind-turbine induced clutter is currently affecting air surveillance radar installations worldwide. The growing need for renewable energy sources will likely drive wind farm construction rates to increase over time. Energy department estimates indicate 2.3% of the current US electric energy supply is supplied by wind and estimates this to rise to 20% by 2030, representing an increase of nearly 10x the number of wind turbines. Wind-turbine induced clutter is fundamentally different from typical ground clutter in that the rotating turbines appear Doppler shifted to the radar in the same way as airborne moving targets. Moreover, wind farms present the radar system with a relatively high density of false targets. STR"s proposed approach to wind-turbine induced clutter mitigation is based on characterization of the clutter followed by adaptive filtering to simultaneously suppress the clutter and preserve target responses. This approach is designed to address the problems of multiple turbines in a single range cell as well as short CPI and asynchronous scanning. The Phase 1 study indicates that the STR approach is well suited for this challenge. Significant clutter reduction while preserving targets was achieved and verified on measured ATC radar data. SINR improvements of over 20 dB were observed. BENEFIT: If the proposed Phase 2 approach is successful a software upgrade path for existing ATC radars will be designed and demonstrated that mitigates wind farm interference. This upgrade will allow for construction of wind farms near ATC radars without concerns for significant performance degradation.

Principal Investigator:

Gil Raz
Senior Member of Technica
(781) 503-3298

Business Contact:

Melinda Wood
Director, Business Operat
(603) 718-9800
Small Business Information at Submission:

Systems & Technology Research
600 West Cummings Park, Suite 6500 Woburn, MA -

EIN/Tax ID: 273556936
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No