利用一对梯形形状的频谱函数合成地震勘探信号源子波的方法研究

A method of forming source wavelet by using a pair of trapezoid frequency spectrum.

地震勘探信号模拟及解释必须要有最佳拟合地震波震源子波的丰富知识。据此开发研制了一种具有良好人机界面功能的设计震源子波的程序,有助于了解实际地震勘探中震源子波对地震波信号的作用。通常大多数商业化的地震波勘探正演数值模拟软件包含有信号源子波。然而,在市场上,仅有少数商业化软件包具有文章中所讨论的震源子波设计的概念。文章还分析了频率和相位之间的依赖关系。

One important aspect of modeling and interpretation is the knowledge of the source wavelet that best fits the seismic data. One approach to the issue of understanding the wavelet is an interactive program for wavelet design. Admittedly, this may sound like something that is already included in most software for synthetic seismograms. However, there are just a few software packages on the market that can implement the type of wavelet design ideas we discuss in this paper. Specifically the phase and aspects of frequency-dependent phase are considered in this paper.