In order to in-phase stack of aligned reflection events on CMP gathers, the stack velocities may have some higher or lower anomalies.
若使共中心点道集内的反射同相轴校平后能够同相叠加， 叠加速度则会出现一些低或高的异常。
The method utilizes all the CMP and CCP angle gathers after NMO to build multi-wave & multi-parameter joint inversion equation and calculate the lithologic parameters of interval.
该方法利用动校正后的CMP及CCP全部角道集，建立多波多参数联合反演方程，进而求解出目的层段的岩性参数。
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