To eliminate the residuals caused by noise, a new phase filtering method is proposed to reduce the noise in the phase data. 同时，针对磁共振相位解缠绕中的噪声问题，本文提出一个新的滤波方法，可以高效地消除噪声导致的解缠绕的不一致性。
The paper calculates and analyses the problem of vibration and noise of subway gear box with the combination of structural FEM and acoustic FEM. 摘要运用结构有限元法和声学有限元法，对地铁某型号齿轮箱振动与噪声问题进行计算分析。
