TY - GEN
T1 - The radar signature of the Wind Lens
T2 - IET International Conference on Radar Systems, Radar 2012
AU - Balleri, Alessio
AU - Al-Armaghany, Allann
AU - Griffiths, Hugh
AU - Tong, Kenneth
AU - Matsuura, Takashi
PY - 2012
Y1 - 2012
N2 - We study the radar signature of a new type of wind turbine, named the Wind Lens. This design includes a flanged shroud around the turbine which concentrates the wind flow past the turbine blades and hence improves the efficiency. The design also offers improved safety, and reduces acoustic noise. Furthermore, it may offer a significantly lower radar signature, which may make the design much more attractive for use in situations where conventional wind turbine designs may disturb the operation of radars. We present the results of an experimental trial, carried out in the UK, to measure the Radar Cross Section (RCS) of a 5 kW Wind Lens turbine prototype and we provide a reference database that can be used for comparing the Wind Lens RCS with that of conventional turbines. We investigate methods to further reduce the Wind Lens RCS and present the results of a time-varying Doppler analysis. Results show that the addition of a metallic mesh around the shroud obscures the rotating blades, and hence mitigates the RCS by 15 dBm2, at angles where the radar interference is highest.
AB - We study the radar signature of a new type of wind turbine, named the Wind Lens. This design includes a flanged shroud around the turbine which concentrates the wind flow past the turbine blades and hence improves the efficiency. The design also offers improved safety, and reduces acoustic noise. Furthermore, it may offer a significantly lower radar signature, which may make the design much more attractive for use in situations where conventional wind turbine designs may disturb the operation of radars. We present the results of an experimental trial, carried out in the UK, to measure the Radar Cross Section (RCS) of a 5 kW Wind Lens turbine prototype and we provide a reference database that can be used for comparing the Wind Lens RCS with that of conventional turbines. We investigate methods to further reduce the Wind Lens RCS and present the results of a time-varying Doppler analysis. Results show that the addition of a metallic mesh around the shroud obscures the rotating blades, and hence mitigates the RCS by 15 dBm2, at angles where the radar interference is highest.
KW - Radar clutter
KW - Radar interference
KW - Wind farm clutter
KW - Wind turbines
UR - https://www.scopus.com/pages/publications/84877785015
U2 - 10.1049/cp.2012.1683
DO - 10.1049/cp.2012.1683
M3 - Conference contribution
AN - SCOPUS:84877785015
SN - 9781849196765
T3 - IET Conference Publications
BT - IET International Conference on Radar Systems, Radar 2012
Y2 - 22 October 2012 through 25 October 2012
ER -