在均匀介质情况下,地震波被认为是一种正弦脉冲波,而在非均匀介质情况下,地震波可用傅氏级数或傅氏积分来表示。基于这种认识,我们首先以对称正弦脉冲波模拟正常反射波,再由实际记录减去加权处理的正弦波记录,其剩余波形即为所求的剩余异常道。此剩余异常道可以作为判别特殊岩性和特殊地质结构的手段。 In the case of uniform medium, the seismic wave is considered as a sinusoidal pulse wave, while in the case of inhomogeneous media, the seismic wave can be expressed in Fourier series or Fourier integral. Based on this understanding, we first simulate the normal reflection wave with a symmetrical sinusoidal pulse wave, then subtract the weighted sine wave record from the actual record, and the remaining waveforms are the residual anomaly channels sought. The remaining anomaly can be used as a means of discriminating between special lithologies and special geological structures.