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Outputs (36)

The impact of atmospheric pressure on the performance of 60GHz point to point links within 5G networks (2018)
Presentation / Conference
Linge, N., Odum, R., Hill, S., von Hünerbein, S., Linnebank, P., Sutton, A., & Townend, D. (2018, November). The impact of atmospheric pressure on the performance of 60GHz point to point links within 5G networks. Presented at Loughborough Antennas & Propagation Conference 2018 (LAPC2018), Loughborough, UK

There is growing interest in the use of millimetre-wave spectrum as a potential candidate for the provision of high capacity, short range, back-haul solutions within future 5G ultra-dense network infrastructures. However, it is recognised that these... Read More about The impact of atmospheric pressure on the performance of 60GHz point to point links within 5G networks.

Fixed echo rejection in sodar using non-coherent matched filter detection and Gaussian mixture model based post-processing (2018)
Journal Article
Kendrick, P., & von Hünerbein, S. (2019). Fixed echo rejection in sodar using non-coherent matched filter detection and Gaussian mixture model based post-processing. Journal of Atmospheric and Oceanic Technology, 36(1), 3-16. https://doi.org/10.1175/jtech-d-18-0095.1

Doppler sodar (SOund Detection and Ranging) is a technology used for acoustic based remote sensing of the lower planetary boundary layer. Sodars are often used to measure wind profiles however, they suffer from problems due to noise (both acoustic a... Read More about Fixed echo rejection in sodar using non-coherent matched filter detection and Gaussian mixture model based post-processing.

Annoyance from wind turbine noise? Review of wind turbine noise studies of the last two decades (2018)
Presentation / Conference
von Hünerbein, S. (2018, May). Annoyance from wind turbine noise? Review of wind turbine noise studies of the last two decades. Presented at 3rd Wind Turbine Acoustic Day, Technical University of Denmark, DTU Risø Campus, Roskilde, DK

In agreement with other environmental noise literature, most work on the annoyance from wind turbines has focussed on noise. Notable work has been carried out in Sweden, the Netherlands, Japan, China, Canada and the US. Their results seem to show tha... Read More about Annoyance from wind turbine noise? Review of wind turbine noise studies of the last two decades.

Atmospheric impact on the performance of a 60GHz point-to-point link for 5G infrastructures (2018)
Presentation / Conference
Linge, N., Odum, R., Hill, S., von Hünerbein, S., Linnebank, P., Sutton, A., & Townend, D. (2018, April). Atmospheric impact on the performance of a 60GHz point-to-point link for 5G infrastructures. Poster presented at 12th European Conference on Antennas and Propagation (EuCAP 2018), London, UK

There is growing interest in the use of millimeter-wave spectrum as a potential candidate for the provision of high capacity, short range, back-haul solutions within future 5G ultra-dense network infrastructures. However, it is recognized that these... Read More about Atmospheric impact on the performance of a 60GHz point-to-point link for 5G infrastructures.

Eliminating wind noise contamination of wind turbine noise amplitude modulation ratings - first validation (2017)
Presentation / Conference
von Hünerbein, S., Kendrick, P., Kerscher, M., & Bradley, S. (2017, July). Eliminating wind noise contamination of wind turbine noise amplitude modulation ratings - first validation. Presented at The 24th International Congress on Sound and Vibration (ICSV24), London, UK

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. Previous studies simulated the effect that microphone wi... Read More about Eliminating wind noise contamination of wind turbine noise amplitude modulation ratings - first validation.

Extended simulations of wind noise contamination of amplitude modulation ratings (2017)
Presentation / Conference
von Hünerbein, S., Kendrick, P., & Cox, T. (2017, May). Extended simulations of wind noise contamination of amplitude modulation ratings. Presented at Wind Turbine Noise 2017, Rotterdam, NL

Microphone wind noise can corrupt outdoor measurements and recordings and especially the rating of Amplitude Modulation (AM) depth. In a previous study simulations of synthesised wind turbine sounds in wind noise have shown that even at relatively lo... Read More about Extended simulations of wind noise contamination of amplitude modulation ratings.

The effect of microphone wind noise on the amplitude modulation of wind turbine noise and its mitigation (2016)
Journal Article
Kendrick, P., von Hünerbein, S., & Cox, T. (2016). The effect of microphone wind noise on the amplitude modulation of wind turbine noise and its mitigation. ˜The œJournal of the Acoustical Society of America (Online), 140(1), EL79. https://doi.org/10.1121/1.4955010

Microphone wind noise can corrupt outdoor recordings even when wind shields are used. When monitoring wind turbine noise, microphone wind noise is almost inevitable because measurements cannot be made in still conditions. The effect of microphone win... Read More about The effect of microphone wind noise on the amplitude modulation of wind turbine noise and its mitigation.

Affective response to amplitude modulated wind turbine noise (2015)
Presentation / Conference
von Hünerbein, S., & Piper, B. (2015, April). Affective response to amplitude modulated wind turbine noise. Presented at Wind Turbine Noise 2015, Glasgow

Residents living adjacent to wind farms are exposed to a combination of turbine noise and background noise with all its environmental and local constituents. As the amplitude modulation character in turbine sounds is thought to specifically contribut... Read More about Affective response to amplitude modulated wind turbine noise.

Simulating acoustic scattering from atmospheric temperature fluctuations using a k-space method (2014)
Journal Article
Hargreaves, J., Kendrick, P., & von Hünerbein, S. (2014). Simulating acoustic scattering from atmospheric temperature fluctuations using a k-space method. ˜The œJournal of the Acoustical Society of America (Online), 135(1), 82-92. https://doi.org/10.1121/1.4835955

This paper describes a numerical method for simulating far-field scattering from small regions of inhomogeneous temperature fluctuations. Such scattering is of interest since it is the mechanism by which acoustic wind velocity profiling devices (Dopp... Read More about Simulating acoustic scattering from atmospheric temperature fluctuations using a k-space method.

Wind turbine amplitude modulation: research to improve understanding as to its cause & effect (2013)
Report
Cand, M., Bullmore, A., Smith, M., von Hünerbein, S., & Davis, R. (2013). Wind turbine amplitude modulation: research to improve understanding as to its cause & effect

This report contains full details of Renewable UK’s research into amplitude modulation, detailing the identification, occurrence and mitigation of a characteristic known as Other Amplitude Modulation(OAM).

A bistatic sodar for precision wind profiling in complex terrain (2013)
Journal Article
Bradley, S., von Hünerbein, S., & Mikkelsen, T. (2013). A bistatic sodar for precision wind profiling in complex terrain. Journal of Atmospheric and Oceanic Technology, 29(8), 1052-1061. https://doi.org/10.1175/JTECH-D-11-00035.1

A new ground-based wind profiling technology—a scanned bistatic sodar—is described. The motivation for this design is to obtain a “mastlike” wind vector profile in a single atmospheric column extending from the ground to heights of more than 200 m. T... Read More about A bistatic sodar for precision wind profiling in complex terrain.

Health impacts of wind turbines (2013)
Report
von Hünerbein, S., Moorhouse, A., Fiumicelli, D., & Baguley, D. (2013). Health impacts of wind turbines

This report presents the results of a rapid, desk based analysis of peer reviewed UK and international literature from the last four years on the effects of wind turbines on human health. The review covers literature specified by the Scottish governm... Read More about Health impacts of wind turbines.

Beam geometry calibration of SODARs without use of a mast (2013)
Journal Article
Bradley, S., & von Hünerbein, S. (2013). Beam geometry calibration of SODARs without use of a mast. Journal of Atmospheric and Oceanic Technology, 30(9), 1-23. https://doi.org/10.1175/JTECH-D-12-00112.1

A new method for calibration of SODAR wind speed measurements is described. The method makes no assumptions whatsoever about the SODAR operation and its hardware and software, other than the assumption that only one beam is transmitted at a time. Reg... Read More about Beam geometry calibration of SODARs without use of a mast.

UpWind: integrated wind turbine design - Salford final summary on WP 6.1, WP.6.2, WP 6.3 And WP 6.4 (2011)
Report
von Hünerbein, S., Bradley, S., & Piper, B. (2011). UpWind: integrated wind turbine design - Salford final summary on WP 6.1, WP.6.2, WP 6.3 And WP 6.4

Within the Upwind project the University of Salford provided development work for SODAR instruments in relation to the next generation of wind turbines. The main focus of the work was on the identification and proposal of design improvements, the dev... Read More about UpWind: integrated wind turbine design - Salford final summary on WP 6.1, WP.6.2, WP 6.3 And WP 6.4.

Noise and vibration from building-mounted micro wind turbines Part 2: Results of measurements and analysis (2011)
Report
Part 2: Results of measurements and analysis

Description To research the quantification of vibration from a micro turbine, and to develop a method of prediction of vibration and structure borne noise in a wide variety of installations in the UK. Objective The objectives of the study... Read More about Noise and vibration from building-mounted micro wind turbines Part 2: Results of measurements and analysis.

Structure-borne sound and vibration from building-mounted wind turbines (2011)
Journal Article
Moorhouse, A., Elliott, A., Eastwick, G., Evans, T., Ryan, A., von Hünerbein, S., …Waddington, D. (2011). Structure-borne sound and vibration from building-mounted wind turbines. Environmental Research Letters, 6(3), 035102. https://doi.org/10.1088/1748-9326/6/3/035102

Noise continues to be a significant factor in the development of wind energy resources. In the case of building-mounted wind turbines (BMWTs), in addition to the usual airborne sound there is the potential for occupants to be affected by structure-bo... Read More about Structure-borne sound and vibration from building-mounted wind turbines.

Noise and vibration from building-mounted micro wind turbines part 3 : prediction methodology (2011)
Report
part 3 : prediction methodology

This brief report describes a simplified method for estimation of levels of structure-borne sound in buildings to which a micro-wind turbine (MWT) is attached. The method is applicable to two specific designs of MWT, each for three lengths of moun... Read More about Noise and vibration from building-mounted micro wind turbines part 3 : prediction methodology.

Noise and vibration from building-mounted micro wind turbines Part 1: Review and proposed methodology (2011)
Report
Moorhouse, A., Elliott, A., Eastwick, G., von Hünerbein, S., & Waddington, D. (2011). Noise and vibration from building-mounted micro wind turbines Part 1: Review and proposed methodology

Description To research the quantification of vibration from a micro turbine, and to develop a method of prediction of vibration and structure borne noise in a wide variety of installations in the UK. Objective The objectives of the study... Read More about Noise and vibration from building-mounted micro wind turbines Part 1: Review and proposed methodology.

Coded signals: a challenge for acoustic wind profiling (2008)
Presentation / Conference
von Hünerbein, S., & Bradley, S. (2008, November). Coded signals: a challenge for acoustic wind profiling. Presented at 156th Meeting: Acoustical Society of America, Miami, FL, USA

Use of coded signals for acoustic wind profiling presents special challenges because the scattering mechanism is highly bandwidth sensitive. We outline the physical principles involved and show that the signal coding methods commonly used for underwa... Read More about Coded signals: a challenge for acoustic wind profiling.

Relating urban boundary layer structure to upwind terrain for the Salfex campaign (2008)
Journal Article
Barlow, J., Rooney, G., von Hünerbein, S., & Bradley, S. (2008). Relating urban boundary layer structure to upwind terrain for the Salfex campaign. Boundary-Layer Meteorology, 127(2), 173-191. https://doi.org/10.1007/s10546-007-9261-y

Profiles of wind and turbulence over an urban area evolve with fetch in response to surface characteristics. Sodar measurements, taken on 22nd April 2002 during the Salfex campaign, are here related to upstream terrain. A logarithmic layer up to z=65... Read More about Relating urban boundary layer structure to upwind terrain for the Salfex campaign.

Sound speed profile structure and variability measured over flat terrain (2006)
Presentation / Conference
Waddington, D., von Hünerbein, S., & Bradley, S. (2006, July). Sound speed profile structure and variability measured over flat terrain. Presented at 13th International Conference on Sound and Vibration, Vienna, Austria

This paper describes a fundamental data base and data-variability guide for outdoor sound propagation models requiring sound speed profiles. The vertical sound speed profile has been measured directly over an extended period at a flat terrain site an... Read More about Sound speed profile structure and variability measured over flat terrain.

Calibration of SODARs for wind energy applications (2006)
Presentation / Conference
von Hünerbein, S., Antoniou, I., Jorgensen, H., Kindler, D., & Bradley, S. (2006, July). Calibration of SODARs for wind energy applications. Presented at International Symposium for the Advancement of Boundary Layer Remote Sensing, Garmisch-Partenkirchen, Germany

Traditionally SODAR wind profilers have been assumed to be largely self-calibrated, with measurement errors mostly random. However, increasing demand for accuracy in applications such as wind energy demand robust calibration and intercomparison proce... Read More about Calibration of SODARs for wind energy applications.

SODAR measurements of wind vortex strength and position (2006)
Presentation / Conference
Bradley, S., Mursch-Radlgruber, E., & von Hünerbein, S. (2006, July). SODAR measurements of wind vortex strength and position. Presented at International Symposium for the Advancement of Boundary Layer Remote Sensing, Garmisch-Partenkirchen, Germany

A method is described for real-time visualisation of aircraft wing-tip vortices based on measurement data from a line array of SODARs. Every 2 s a ‘snapshot’ is taken of the atmospheric vertical velocity field above the SODARs. This provides a grid... Read More about SODAR measurements of wind vortex strength and position.

Atmospheric acoustic interferometer tomography of temperature and winds (2005)
Journal Article
Bradley, S., von Hünerbein, S., & Haddad, A. (2005). Atmospheric acoustic interferometer tomography of temperature and winds. Acta acustica united with Acustica, 91(6), 1025-1030

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.

SODAR calibration for wind energy applications, final reporting on WP3, EU WISE project NNE5-2001-297 (2005)
Report
Bradley, S., Antoniou, I., von Hünerbein, S., Kindler, D., Jorgensen, H., & De Noord, M. (2005). SODAR calibration for wind energy applications, final reporting on WP3, EU WISE project NNE5-2001-297

The method traditionally used for measuring the wind speed and direction for wind energy purposes is to record the output from cup or propeller anemometers and vanes at several heights on a mast. As turbines have grown in height, this method has bec... Read More about SODAR calibration for wind energy applications, final reporting on WP3, EU WISE project NNE5-2001-297.

On the theory of SODAR measurement techniques (final reporting on WP1, EU WISE project NNE5-2001-297) (2003)
Report
Antoniou, I., Jorgensen, H., Ormel, F., Bradley, S., von Hünerbein, S., Emeis, S., & Warmbier, G. (2003). On the theory of SODAR measurement techniques (final reporting on WP1, EU WISE project NNE5-2001-297)

The need for alternative means to measure the wind speed for wind energy purposes has increased with the increase of the size of wind turbines. The cost and the technical difficulties for performing wind speed measurements has also increased with t... Read More about On the theory of SODAR measurement techniques (final reporting on WP1, EU WISE project NNE5-2001-297).

A doppler sodar case study of top-down convection and convective dissipation of stratus (2002)
Journal Article
von Hünerbein, S., & Richner, H. (2002). A doppler sodar case study of top-down convection and convective dissipation of stratus. Journal of Atmospheric and Oceanic Technology, 19(8), 1170-1180. https://doi.org/10.1175/1520-0426%282002%29019%3C1170%3AADSCSO%3E2.0.CO%3B2

Stratus dissipation over the Swiss Plateau has long been a forecasting problem. A case study of stratus structure and development was conducted during the winter of 1997/98. Measurements were performed with the monostatic Doppler sodar of the Swiss F... Read More about A doppler sodar case study of top-down convection and convective dissipation of stratus.

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.

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.