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Y. Hur, SE. WO. Kim, Y. Park, and DA. HE. Youn, "Highly Focused Sound Beamforming Algorithm Using Loudspeaker Array System," Paper 7619, (2008 October.). doi: Y. Hur, SE. WO. Kim, Y. Park, and DA. HE. Youn, "Highly Focused Sound Beamforming Algorithm Using Loudspeaker Array System," Paper 7619, (2008 October.). doi:
Abstract: This paper presents a technique of sound beamforming using a loudspeaker array that can generate highly focused sound beams. First, we find an optimal solution to the problem of maximizing the sound power ratio between a target region and the total region excluding the target region. A preliminary sound beam is designed using the optimal weight. Next, to enhance the directivity of the pre-designed sound beam, an iterative pattern synthesis technique, which was introduced for antenna array, is applied. By assuming that there are imaginary sound powers in the non-target regions, the algorithm can iteratively improve the directivity of the sound beam. The performance of proposed method was evaluated, and the results showed that it could provide highly focused sound beam compared to the conventional method.

@article{hur2008highly,
author={hur, yoomi and kim, seong woo and park, young-cheol and youn, dae hee},
journal={journal of the audio engineering society},
title={highly focused sound beamforming algorithm using loudspeaker array system},
year={2008},
volume={},
number={},
pages={},
doi={},
month={october},} @article{hur2008highly,
author={hur, yoomi and kim, seong woo and park, young-cheol and youn, dae hee},
journal={journal of the audio engineering society},
title={highly focused sound beamforming algorithm using loudspeaker array system},
year={2008},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={this paper presents a technique of sound beamforming using a loudspeaker array that can generate highly focused sound beams. first, we find an optimal solution to the problem of maximizing the sound power ratio between a target region and the total region excluding the target region. a preliminary sound beam is designed using the optimal weight. next, to enhance the directivity of the pre-designed sound beam, an iterative pattern synthesis technique, which was introduced for antenna array, is applied. by assuming that there are imaginary sound powers in the non-target regions, the algorithm can iteratively improve the directivity of the sound beam. the performance of proposed method was evaluated, and the results showed that it could provide highly focused sound beam compared to the conventional method.},}

TY - paper
TI - Highly Focused Sound Beamforming Algorithm Using Loudspeaker Array System
SP - EP -
AU - Hur, Yoomi
AU - Kim, Seong Woo
AU - Park, Young-cheol
AU - Youn, Dae Hee
PY - 2008
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2008 TY - paper
TI - Highly Focused Sound Beamforming Algorithm Using Loudspeaker Array System
SP - EP -
AU - Hur, Yoomi
AU - Kim, Seong Woo
AU - Park, Young-cheol
AU - Youn, Dae Hee
PY - 2008
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2008
AB - This paper presents a technique of sound beamforming using a loudspeaker array that can generate highly focused sound beams. First, we find an optimal solution to the problem of maximizing the sound power ratio between a target region and the total region excluding the target region. A preliminary sound beam is designed using the optimal weight. Next, to enhance the directivity of the pre-designed sound beam, an iterative pattern synthesis technique, which was introduced for antenna array, is applied. By assuming that there are imaginary sound powers in the non-target regions, the algorithm can iteratively improve the directivity of the sound beam. The performance of proposed method was evaluated, and the results showed that it could provide highly focused sound beam compared to the conventional method.