When CDP reflection gather includes only AVO effect, estimation of wavelet, AVO, and S/N ratio can be made by time domain stacking or singular value decomposition (SVD).

• 当CDP反射道集仅存在AVO影响时,可采用时间域叠加法或奇异值分解法估计子波、AVO和信噪比,振幅极性的反转会影响时间域叠加法的效果,但不会影响时间域奇异值分解法的效果;