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Automatic detection of microphone wind noise : maximising accuracy of amplitude modulation ratings
Presentation / Conference
von Hünerbein, S., Cox, T., Kendrick, P., & Bradley, S. Automatic detection of microphone wind noise : maximising accuracy of amplitude modulation ratings. Presented at Wind Turbine Sound 2016, Gdansk, Poland

Microphone wind noise can corrupt outdoor measurements and recordings. It is a particular problem for wind turbine measurements because these cannot be carried out when the wind speed is low. Wind shields can be used, but often the sound level from t... Read More about Automatic detection of microphone wind noise : maximising accuracy of amplitude modulation ratings.

Using blind signal processing algorithms to remove wind noise from environmental noise assessments : a wind turbine amplitude modulation case study
Journal Article
Kendrick, P., von Hünerbein, S., & Cox, T. Using blind signal processing algorithms to remove wind noise from environmental noise assessments : a wind turbine amplitude modulation case study. ˜The œJournal of the Acoustical Society of America (Online), 138(3), 1731-1732. https://doi.org/10.1121/1.4933451

Microphone wind noise can corrupt outdoor measurements and recordings. It is a particular problem for wind turbine measurements because these cannot be carried out when the wind speed is low. Wind shields can be used, but often the sound level from... Read More about Using blind signal processing algorithms to remove wind noise from environmental noise assessments : a wind turbine amplitude modulation case study.

Precision measurements of wind turbine noise using a large aperture microphone array
Presentation / Conference
Bradley, S., Mikkelsen, T., von Hünerbein, S., & Legg, M. Precision measurements of wind turbine noise using a large aperture microphone array. Presented at 6th Berlin Beamforming Conference, Berlin

Experiments are described with a large microphone array (40 m scale) recording wind turbine noise. The array comprised 42 purpose-designed low-noise microphones simultaneously sampled at 20 kHz. Very high quality, fast, meteorological profile data wa... Read More about Precision measurements of wind turbine noise using a large aperture microphone array.

SODAR measurements of wing vortex strength and position
Journal Article
Bradley, S., Mursch-Radlgruber, E., & von Hünerbein, S. SODAR measurements of wing vortex strength and position. Journal of Atmospheric and Oceanic Technology, 24(2), 141-155. https://doi.org/10.1175/JTECH2037.1

A method is developed for robust real-time visualisation of aircraft vortex spatial and temporal development based on measurement data from a line array of SODARs. The method relies on using a potential-flow vortex model, with spatial averaging accor... Read More about SODAR measurements of wing vortex strength and position.

SODAR measurements of wing vortex strength and position
Journal Article
Bradley, S., Mursch-Radlgruber, E., & von Hünerbein, S. SODAR measurements of wing vortex strength and position. Journal of Atmospheric and Oceanic Technology, 24(2), 141-155. https://doi.org/10.1175/JTECH2037.1

A method is developed for robust real-time visualisation of aircraft vortex spatial and temporal development based on measurement data from a line array of SODARs. The method relies on using a potential-flow vortex model, with spatial averaging accor... Read More about SODAR measurements of wing vortex strength and position.

A systematic algorithm for obtaining SODAR wind profiles
Journal Article
Bradley, S., & von Hünerbein, S. A systematic algorithm for obtaining SODAR wind profiles. Meteorology and Atmospheric Physics, 85(1-3), 77-84. https://doi.org/10.1007/s00703-003-0035-x

Current methods of obtaining wind profiles from SODARs generally employ ad hoc strategies for Doppler spectrum peak selection, profile smoothing, and consistency checks. This paper addresses the problem of systematically obtaining vertical profiles o... Read More about A systematic algorithm for obtaining SODAR wind profiles.

A systematic algorithm for obtaining SODAR wind profiles
Journal Article
Bradley, S., & von Hünerbein, S. A systematic algorithm for obtaining SODAR wind profiles. Meteorology and Atmospheric Physics, 85(1-3), 77-84. https://doi.org/10.1007/s00703-003-0035-x

Current methods of obtaining wind profiles from SODARs generally employ ad hoc strategies for Doppler spectrum peak selection, profile smoothing, and consistency checks. This paper addresses the problem of systematically obtaining vertical profiles o... Read More about A systematic algorithm for obtaining SODAR wind profiles.

Atmospheric acoustic interferometer tomography of temperature and winds
Presentation / Conference
Bradley, S., von Hünerbein, S., & Haddad, A. Atmospheric acoustic interferometer tomography of temperature and winds. Presented at International Workshop on Tomography and Acoustics, Leipzig, Germany

A technique is described for multiple-path propagation time measurements in the surface layer of the atmosphere. This is based on solving simple bi-directional ray tracing equations on successively higher penetrating paths using propagation times for... Read More about Atmospheric acoustic interferometer tomography of temperature and winds.