噪声与振动控制2016，Vol.36Issue(5)：21-25,43,6.DOI:10.3969/j.issn.1006-1335.2016.05.005
复杂声场环境下目标声源声场重建误差分析
Reconstruction Errors of Sound Fields of Target Sound Sources under Complex Sound Field Environment
张诗科 1朱海潮 2谢志敏 1毛荣富2
作者信息
- 1. 海军工程大学 振动与噪声研究所，武汉 430033
- 2. 船舶振动噪声重点实验室，武汉 430033
- 折叠
摘要
Abstract
Aiming at the problem that sound field reconstruction of target sound sources can be disturbed easily, a new separation and reconstruction calculation method of the target sound sources based on single-side sound-field separation technique is presented under mixed sound field environment. This mixed sound field consists of interference source sound field, scattering sound field and target sound field itself. First of all, the influence of the interference sound source field and the scattering sound field is cleared by theoretical analysis and formula deduction. Then, the separation and reconstruction errors of the sound field are analyzed by using transfer function property and the singularity in the calculation formula is eliminated. Finally, the high resolution sound field reconstruction image is obtained. Numerical simulation shows that the conventional single surface sound field separation technique can hardly reconstruct the sound field of the target sound source under the mixed sound field environment. While the sound field of the target sound source can be reconstructed very well by using the proposed separation and reconstruction method. And the accuracy of the sound field reconstruction is improved.关键词
声学/声全息/复杂声场/声场重建/误差分析Key words
acoustics/acoustic holography/complex sound field/reconstruction of sound field/error analysis分类
通用工业技术引用本文复制引用
张诗科,朱海潮,谢志敏,毛荣富..复杂声场环境下目标声源声场重建误差分析[J].噪声与振动控制,2016,36(5):21-25,43,6.
