论文部分内容阅读
多源混合声场的全息重建和预测研究对声全息技术走向实际应用具有非常重要的意义.在提出两种基于分布源边界点法的多源混合声场全息重建和预测方法:单面测量组合法和多面测量组合法的基础上,对此展开了实验研究,并通过对两种方法重建和预测的结果与实际结果的比较和讨论,说明了两种方法的有效性以及多面测量组合法的优越性.考虑到实际重建结果对测量误差的高度敏感性,文中提出采用Tikhonov正则化方法稳定重建过程,抑制测量误差的影响,从而优化了重建结果,提高了全息重建和预测的可信度,为声全息技术进一步走向实际应用打下了基础.
The research of holographic reconstruction and prediction of multi-source mixed sound field is very important for practical application of acoustic holography.We propose two methods of holographic reconstruction and prediction of multi-source mixed sound field based on distributed source boundary point method: one-side measurement combination method and Based on the multi-faceted measurement combination method, the experimental research is carried out on the basis of the comparison and discussion between the results of reconstruction and prediction of the two methods and the actual results. The validity of the two methods and the superiority of multi-faceted measurement combination method Considering the high sensitivity of actual reconstructed results to measurement error, this paper proposes a method of Tikhonov regularization to stabilize the reconstruction process and suppress the influence of measurement error, so as to optimize the reconstruction results and improve the credibility of holographic reconstruction and prediction. Holographic technology to further lay the foundation for practical application.