Generalized stable inverse Q filtering

Abstract

The conventional stable inverse Q filtering method overcomes the instability of the inverse Q filtering and can effectively perform amplitude compensation and phase correction. However, its shortcoming is that it cannot solve the problem of excessive compensation for shallow seismic records and insufficient compensation for deep seismic records. The essence is that the compensation bandwidth and intensity of the amplitude compensation operator cannot be adjusted. We propose a generalized stable inverse Q filtering method. By introducing a parameter into the stable amplitude compensation operator based on stabilization factor, the method can flexibly and effectively handle the compensation intensity and frequency bandwidth to achieve high resolution and high signal-to-noise ratio seismic data. The test results of theoretical synthetic seismic data and real seismic data show that this method has unique value in frequency band selection of amplitude compensation according to the quality of seismic data, which can improve the resolution and get high signal-to-noise ratio seismic data.