物理学报2012，Vol.61Issue(15)：300-309,10.
基于声压梯度参考的部分场分解方法及实验研究
An investigation of partial field decomposition using pressure gradient reference
摘要
Abstract
The incoherent sound field obtained by scanning measurement cannot be used directly for nearfield acoustic holography to reconstruct the sound field.And therefore,the incoherent sound field needs to be decomposed into fully coherent partial fields.In previous methods,the pressure is used as reference to obtain the partial fields.In this paper,the pressure gradient is used as the reference for the partial field decomposition.Because the pressure gradient decays faster than the pressure,the interaction of the pressure gradient between the incoherent sources is weaker than that of the pressure,which may improve the effect of the partial field decomposition.A numerical simulation and an experiment are conducted to test the feasibility of the method.And it is shown that the partial field decomposition method based on pressure gradient reference is robust and the decomposed results are better than those based on pressure references.关键词
不相干声场/近场声全息/声压梯度/部分场分解Key words
incoherent sound field/nearfield acoustic holography/pressure gradient/partial field decomposition分类
数理科学引用本文复制引用
毕传兴,郭明建,张永斌,徐亮..基于声压梯度参考的部分场分解方法及实验研究[J].物理学报,2012,61(15):300-309,10.基金项目
国家自然科学基金 （）
教育部新世纪优秀人才支持计划 （）
高等学校博士学科点专项科研基金（批准号：20100111110007）资助的课题 （）
