As a basic form of the equivalent source method (ESM) that is used to nearfield acoustical
holography (NAH) problems, discrete monopoles are utilized to represent the sound field of …

The aim of this study was to compare algorithms for solving inverse problems generally
encountered in spatial audio signal processing. Tikhonov regularization is typically utilized …

近场声全息的逆向重建过程属于线性病态逆问题, 必须进行正则化处理. 本文对三种基于
Tikhonov 正则化的参数选择方法, 即离差原理法, 广义交叉验证法, L 曲线法, 在不同全息距离 …

A shotgun microphone is a highly directional pickup device widely used in noisy
environments. The key element that leads to its superior directivity is a tube with multiple slot …

This paper presents helpful guidelines and strategies for reconstructing the vibro-acoustic
quantities on a highly non-spherical surface by using the Helmholtz equation least squares …

This paper revisits a nearfield microphone array technique termed nearfield equivalent
source imaging (NESI) proposed previously. In particular, various issues concerning the …

A traditional method to measure particle velocity is based on the finite difference (FD)
approximation of pressure gradient by using a pair of well matched pressure microphones …

为解决非自由声场中近场声全息重建时, 干扰声在目标声源表面产生的散射影响,
提出一种基于球面波叠加法的自由场还原技术. 该技术首先采用基于球面波叠加法的声场分离 …

Sound-field reconstruction via the equivalent source method presents an ill-conditioned
problem. This paper proposes a method in which traditional monopole equivalent source …

In order to choose an optimal regularization parameter for near field acoustic holography
(NAH) based on equivalent source method (ESM), Bayesian regularization criterion method …