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Wavefront decomposition and propagation through complex models with analytical ray theory and signal processing

机译:波前分解和通过具有解析射线理论和信号处理功能的复杂模型传播

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摘要

We present a novel method which can perform the fast computation of the times of arrival of seismic waves which propagate between a source and an array of receivers in a stratified medium. This method combines signal processing concepts for the approximation of interfaces and wavefronts, and ray theory for the propagation of wavefronts. This new approach leads to the redefinition and simplification of the model through which waves propagate. The modifications are governed by the spectral characteristics of the source signal. All rays are computed without any omission at a much lower cost in computing time than classical methods
机译:我们提出了一种新颖的方法,该方法可以快速计算在分层介质中的震源和一系列接收器之间传播的地震波的到达时间。该方法结合了用于接口和波前近似的信号处理概念,以及用于波前传播的射线理论。这种新方法导致重新定义和简化波传播通过的模型。修改取决于源信号的频谱特性。与传统方法相比,所有射线的计算时间都大大减少,而没有任何遗漏

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