Waseda University, 3-4-1, Okubo, Tokyo, Japan.
J Acoust Soc Am. 2011 Oct;130(4):EL271-5. doi: 10.1121/1.3638925.
This paper presents an approach to distinguishing the zeros representing a sound source from those representing the transfer function on the basis of Lyon's residue-sign model. In machinery noise diagnostics, the source signature must be separated from observation records under reverberant path conditions. In numerical examples and an experimental piano-string vibration analysis, the modal responses could be synthesized by using clustered line-spectrum modeling. The modeling error represented the source signature subject to the source characteristics being given by a finite impulse response. The modeling error can be interpreted as a remainder function necessary for the zeros representing the source signature.
本文提出了一种基于 Lyon 的残数-符号模型区分声源零点和传递函数零点的方法。在机械噪声诊断中，必须在混响路径条件下将声源特征与观测记录分开。在数值实例和实验钢琴弦振动分析中，可以通过聚类线谱建模来合成模态响应。建模误差表示声源特征给定的有限脉冲响应下的声源特征。建模误差可以解释为表示声源特征的零点所必需的余数函数。
