地震反射勘探中,调幅与调频波的运动,构成地滚波干扰。所以,用一维线性调频匹配滤波器就可能消除地滚波。这些滤波器有效地衰减了地滚波的能量,且不破坏地滚波频率段内外的信号子波。当地震反射与地滚波的频带重叠时,这种新的滤波器消除地滚波比常规频率和多道滤波器有效得多,而且不影响滤波地震资料的垂向分辨率。 Earthquake reflection exploration, amplitude modulation and FM wave motion, constitute ground-roll interference. Therefore, one-dimensional linear FM matched filter may eliminate ground roll. These filters effectively attenuate the energy of the ground roll without destroying the signal wave inside and outside the frequency range. When the seismic reflection overlaps with the ground roll, the new filter-canceling ground roll is much more effective than the conventional and multichannel filters and does not affect the vertical resolution of the filtered seismic data.