对于作为实序列的地震记录以足够大的正常数(其下限为序列的最大根模)为底作负指数加权处理,将使反射系数序列复倒谱的奇部大大小于子波复倒谱的奇部,因此可以由地震记录复倒谱的奇部恢复子波(差一个常数比例因子)。这个方法不要求反射系数序列具有白噪音特性,并允许提取时变子波。 For the seismic record that is a real sequence, negative exponential weighting processing for a sufficiently large normal number (the lower limit of which is the largest root module of the sequence), the odd part of the complex cepstrum of the reflection coefficient sequence will be significantly smaller than the odd part of the complex wavelet cepstrum Therefore, it is possible to recover the wavelet from the odd part of the seismic cepstrum (by a constant scale factor). This method does not require the reflection coefficient sequence to have white noise characteristics and allows the extraction of time-varying wavelets.