基于正则化声压匹配法的舱室声场复现
Cabin Sound Field Reproduction Based on Pressure Matching Method Combining Regularization Technique
王海涛 1陈克安 1曾向阳 1董宁娟 2高南沙1
作者信息
- 1. 西北工业大学,陕西 西安 710072
- 2. 中国飞机强度研究所,陕西 西安 710065
- 折叠
摘要
舱室噪声控制、声品质设计等研究通常需开展大量的声场测试试验,由于舱室实际试验成本较高,因此通过声场复现的方式在舱室模拟舱中复现所需求的声学环境,对于降低研究成本、开展重复性试验具有重要意义.本文面向舱室声环境复现需求,以经典声压匹配法为基础,建立了基于扬声器阵列输出的多目标点位协同复现算法,通过引入正则化技术,使算法对实际测试中的各类噪声具有更强的鲁棒性.在一个实际舱室模拟舱环境中搭建了复现系统,复现试验表明,本文算法可在指定舱内的多个点位上协同复现目标频响曲线,在宽频范围内相对误差小于5%,具有良好的精度,在舱室声环境复现应用中具有良好的前景.
Abstract
Aircraft noise control,sound quality design and other researches require lots of acoustic field experiments carried out in the cabin.However,the real aircraft flights are too expensive to be frequently performed in the study.Reproducing the sound field in an experimental cabin is very important and valuable to reduce research costs and carry out repeatable experiments.In this paper,a multi-target point sound field reproduction algorithm based on the classical sound pressure matching method is established.to improve the accuracy in the real environment where there is obvious noise,and the regularization technique is introduced into the method.The reproduction system is built in an experimental aircraft cabin environment.The reproduction experiments show that the algorithm can reproduce the target frequency response curve at multiple points in the specified cabin with a relative error of less than 5%in a wide frequency range.The method has good prospects in the aircraft cabin acoustic environment reproduction applications.
关键词
舱室/声场复现/声压匹配/扬声器阵列/正则化Key words
aircraft cabin/sound field reproduction/sound pressure matching/speaker array/regularization引用本文复制引用
基金项目
国家自然科学基金(12074317)
航空科学基金(20181553017)
出版年
2024
国家科技期刊平台
NSTL
万方数据