ETRI-Knowledge Sharing Plaform

ENGLISH

성과물

논문 검색
구분 SCI
연도 ~ 키워드

상세정보

학술지 Screen-Based Sports Simulation Using Acoustic Source Localization
Cited 10 time in scopus Download 25 time Share share facebook twitter linkedin kakaostory
저자
서상우, 윤소미, 김명규, 성만규, 김예진
발행일
201908
출처
Applied Sciences, v.9 no.15, pp.1-15
ISSN
2076-3417
출판사
MDPI
DOI
https://dx.doi.org/10.3390/app9152970
협약과제
18KS1200, 청소년용 실감 체험형 스포츠 통합플랫폼 기술 개발, 김명규
초록
In this paper, we introduce a novel acoustic source localization in a three-dimensional (3D) space, based on a direction estimation technique. Assuming an acoustic source at a distance from adjacent microphones, its waves spread in a planar form called a planar wavefront. In our system, the directions and steering angles between the acoustic source and the microphone array are estimated based on a planar wavefront model using a delay and sum beamforming (DSBF) system and an array of two-dimensional (2D) microelectromechanical system (MEMS) microphones. The proposed system is designed with parallel processing hardware for real-time performance and implemented using a cost-effective field programmable gate array (FPGA) and a micro control unit (MCU). As shown in the experimental results, the localization errors of the proposed system were less than 3 cm when an impulsive acoustic source was generated over 1 m away from the microphone array, which is comparable to a position-based system with reduced computational complexity. On the basis of the high accuracy and real-time performance of localizing an impulsive acoustic source, such as striking a ball, the proposed system can be applied to screen-based sports simulation.
키워드
Acoustic source localization, Delay and sum beamforming, Impulsive sound, Microelectromechanical system, Screen-based sports simulation
KSP 제안 키워드
Adjacent microphones, Computational complexity, Control Unit, Delay and Sum Beamforming, Direction estimation, Effective field, Estimation Technique, Field Programmable Gate Arrays(FPGA), High accuracy, Impulsive sound, Micro controller unit(MCU)
본 저작물은 크리에이티브 커먼즈 저작자 표시 (CC BY) 조건에 따라 이용할 수 있습니다.
저작자 표시 (CC BY)