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不同的波在空间的质点运动轨迹和极化方向是不同的,利用三分量或二分量记录,在特定的以t0为中心,长为N△t的滑动时窗中计算出描述波的质点运动轨迹和极化方向的特征参数。利用这些参数可以设计出合适的极化滤波函数,保留那些满足特定要求的质点运动,而衰减那些不满足设计要求的质点运动,利用某些算子可以把弹性波分解成P波和SV波,而且衰减面波;利用另外一些算子可以把P波和SV波衰减而使面波增强。这些算子甚至可以在嗓音和信号具有相同频率的情况下,成功地提高信嗓比。
The particle motion trajectories and polarization directions of different waves in space are different. By using three-component or two-component recording, the particle motion describing the wave is calculated in a specific sliding window with t0 as the center and Nt as the length Characteristic parameters of trajectory and polarization direction. These parameters can be used to design a suitable polarization filter function, to retain those who meet the specific requirements of particles movement, and to attenuate those who do not meet the design requirements of particles movement, the use of some operators can be divided into P wave and SV wave elastic wave, But also attenuates the surface waves. By using some other operators, the P waves and SV waves can be attenuated to enhance the surface waves. These operators can even improve the signal-to-voice ratio even when the voice and signal have the same frequency.