방향성이 높은 사운드 빔 형성 알고리즘

Domestic Journal
2010-01-01 01:21
Authors : 김성우, 허유미, 박영철, 윤대희

Year : 2010

Publisher / Conference : 한국음향학회지

Volume : 29, 제 1호

Page : 24-33

This paper proposes a technique of sound beamforming that can generate high-directive sound beams, and this paper also presents applications of the proposed algorithm to multi-channel 3D sound systems. The proposed algorithm consists of two phases: first, optimum weights maximizing a sound pressure level ratio between the target and control acoustic regions are designed, and later, the directivity of the pre-designed sound beam is iteratively enhanced by modifying the covariance matrix. The proposed method was evaluated under various situations, and the results showed that it could provide more focused sound beams than the conventional methods.
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