对地震转换波的数字滤波处理

本文讨论运用低通滤波、偏振滤波、频率加强滤波、相关滤波及迭加处理等数字滤波方法,对地震转换波测深资料进行数字处理的方法及效果.数字滤波处理结果在一定程度上提高了记录的信噪比,为准确地进行相位对比和震相识别提供了可靠基础. 

DIGITAL FILTERING IN THE PROCESSING OF CONVERTED WAVES

Some approaches by digital filtering in the processing to earthquake generated converted waves are discussed in this paper. Lowpass filtering,polarization filtering,frequence weighting filtering,correlation filtering,and superposition processing are used to improve the resolving power of seismic records and to raise the signal-to-noise ratio,and so the possibility of phase identification of PS coverted waves is greatly improved.