signal processing for plane wave actuators

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ID: 245517
2010
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Ranked #15 of 52 articles by views in neuropsychiatrie : klinik, diagnostik, therapie und rehabilitation : organ der gesellschaft osterreichischer nervenarzte und psychiater

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Abstract
Plane wave actuators without an enclosure per se have a forward and backward radiation. The backward radiation is unwanted in many applications when a single direction radiation is desired. To avoid the disadvantages of an enclosure a system is proposed, which provides a high suppression of the unwanted backward radiation using a pair of plane wave actuators. This is achieved by adapted input signal filters. The influences of the second plane wave actuator to the forward radiated signal are suppressed as well. Additionally, the system also provides for- and backward radiation of different signals with a high suppression of the radiation directions crosstalk. The required power for the signal suppression depends on the physical damping of the plane wave actuators and the space in between. The first realized prototype is designed for flat panel dipole loudspeakers to deal with the mentioned problems in the acoustic domain. The filter design and a calibration algorithm for any given pairs of dipole loudspeaker are explained. The good performance of the developed system is proven by measurement results with the prototype system.
Reference Key
corbach2010advancessignal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;T. Corbach;M. Holters;U. Zölzer
Journal neuropsychiatrie : klinik, diagnostik, therapie und rehabilitation : organ der gesellschaft osterreichischer nervenarzte und psychiater
Year 2010
DOI
10.5194/ars-8-109-2010
URL
http://www.adv-radio-sci.net/8/109/2010/ars-8-109-2010.pdf
Keywords
engineering (general) civil engineering (general)

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