同济大学学报（自然科学版）2024，Vol.52Issue(z1)：71-75,5.DOI:10.11908/j.issn.0253-374x.24798
基于稳定双共轭梯度的车内声场靶向重建方法
Targeted Reproduction Method of Interior Sound Field Based on Stabilized Biconjugate Gradient
摘要
Abstract
Aiming at requirements of intelligent modulation in vehicle acoustic environment for drivers and passengers,a targeted sound field reproduction method is proposed based on stabilized biconjugate gradient(BiCGSTAB)to collectively improve the acoustic energy contrast and sound field planarity.Considering parametric results of the contribution weight on the in-vehicle sound acoustic arrays to the acoustic environment,and combining the automotive scenario to divide the target acoustic regions,the cabin acoustics model for the drivers and passengers are first constructed.By defining the acoustics problems related to sound field reproduction and combining with the parametric results that the sound pressure response of target regions with respect to sound source distribution positions,the interior acoustics model for drivers and passengers is constructed.Furthermore,the targeted reproduction framework of interior sound field is constructed embracing the given expected sound field,and the driving signals of sound sources are iteratively obtained based on BiCGSTAB.Focusing on acoustics energy contrast,sound field planarity and other indicators,the interior sound field reproduction performance is analyzed in detail.The results show that the proposed method can effectively avoid the abnormal convergence in solving the acoustics complex linear equations,and can achieve the high-quality reproduction about the acoustics amplitude and phase information in vehicle target regions关键词
车内声场/声场重建/声学传递函数/稳定双共轭梯度Key words
interior sound field/sound field reproduction/acoustics transfer function/stabilized biconjugate gradient分类
交通工程引用本文复制引用
李旭,吴旭东,张聪,罗家兴..基于稳定双共轭梯度的车内声场靶向重建方法[J].同济大学学报（自然科学版）,2024,52(z1):71-75,5.
