Separation of zeros for source signature identification under reverberant path conditions |
| |
Authors: | Hasegawa Tomomi Tohyama Mikio |
| |
Institution: | Waseda University, 3-4-1, Okubo, Tokyo, Japan. tomomi-hasegawa@y.ruri.waseda.jp |
| |
Abstract: | 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. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|