论文部分内容阅读
SimonSpitz（1989）提出的用F－X域预测技术实现道内插的方法，尽管有许多优点，但还是存在计算量大、精度低等一些问题。本文给出了一种新的F－X域实现道内插的方法，该方法是利用F－X域预测算子包含了所有反射波同相轴的倾角信息这一特性来实现道内插。它不必像常规方法那样扫描反射波同相轴的倾角，而且即使存在严重的空间仅频时，也可得到较好的内插效果。理论与实际资料试验的结果表明，该方法具有速度快、精度高、内插出的地震道波形自然、不受空间仅频影响等优点，但前提是要求在作道内播之前道距必须相等。
The method proposed by Simon Spitz (1989) that uses F-X domain prediction techniques to achieve intra-channel interpolation, despite its many advantages, is still computationally expensive and of low precision. In this paper, we present a new method of interpolating a channel in F-X domain. The method uses the property that the F-X domain operator contains the inclination information of all reflection wave events to realize the channel interpolation. It does not have to scan for the dip of the reflected wave events like the conventional method, and gives good interpolation even in severe space-only frequencies. The results of theoretical and practical experiments show that this method has the advantages of high speed, high precision and natural interpolation of the waveform of the seismic trace, which is not influenced by the frequency of the space only.