NDLI: Radar signature control of wind turbine generators

Content Provider	IEEE Xplore Digital Library
Author	Tennant, A. Chambers, B.
Copyright Year	2005
Description	Author affiliation: Dept. of Electron. & Electr. Eng., Univ. of Sheffield, UK (Tennant, A.; Chambers, B.)
Abstract	Many of the prime locations for wind farms in the UK are on exposed landscapes close to regional airports. However, planning permission for such installations is often being denied because the moving blades of the wind turbines interfere with the operation of airport radar systems. Airport surveillance radars track the position and speed of aircraft in their surrounding airspace using pulsed Doppler radar techniques. The filtering out of signals from spurious stationary and slow moving targets is relatively straight forward as the associated Doppler shift is zero or below a preset threshold. However, when an airport radar receives returns from a wind turbine installation, the motion of the blades can impart to the radar signal a significant Doppler shift that is comparable with that expected from an aircraft. Hence, techniques for reducing the scattering from wind turbines are being actively researched and one approach that we are investigating is the use of active radar absorbing structures based on the concept of a phase-switched screen (PSS) (Tennant, A. and Chambers, B., Proc SPIE, vol.538, 2004; Chambers and Tennant, IEE Proc. Radar Sonar and Navig., vol.149, no.5, p.243-7). We report experimental results obtained from a scaled model windmill with PSS blades operating in conjunction with a 10 GHz Doppler radar system.
Starting Page	489
Ending Page	492
File Size	637893
Page Count	4
File Format	PDF
ISBN	0780388836
DOI	10.1109/APS.2005.1552702
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-07-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wind turbines Doppler radar Airports Blades Airborne radar Radar tracking Aircraft Doppler shift Radar scattering Wind farms
Content Type	Text
Resource Type	Article

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Partial treatment of wind turbine blades with radar absorbing materials (RAM) for RCS reduction

Measurement and analysis of the radar signature of a new type of wind turbine

Simulation of radar signal on wind turbine

Advanced mitigating techniques to remove the effects of wind turbines and wind farms on primary surveillance radars

Modeling the effects of wind turbines on radar returns

Wind turbine clutter detection in scanning ATC radar

Interaction between radar systems and wind farms

Doppler features from wind turbine scattering in the presence of ground

Statistical characterization of wind turbine clutter in C-band radars

Radar signature control of wind turbine generators

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Partial treatment of wind turbine blades with radar absorbing materials (RAM) for RCS reduction

Measurement and analysis of the radar signature of a new type of wind turbine

Simulation of radar signal on wind turbine

Advanced mitigating techniques to remove the effects of wind turbines and wind farms on primary surveillance radars

Modeling the effects of wind turbines on radar returns

Wind turbine clutter detection in scanning ATC radar

Interaction between radar systems and wind farms

Doppler features from wind turbine scattering in the presence of ground

Statistical characterization of wind turbine clutter in C-band radars

Radar signature control of wind turbine generators