Synthesis of an inhomogeneous medium from its acoustic transmission response
Synthesis of an inhomogeneous medium from its acoustic transmission response
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从声传输响应合成非均匀介质
DOI：
10.1190/1.1620649
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发表时间：
2003
期刊：
影响因子：
3.3
通讯作者：
K. Wapenaar
中科院分区：
文献类型：
--
作者：
K. Wapenaar
1968年，Claerbout指出，水平分层介质的反射响应可以由其透射响应的自相关性合成。在2002年SEG会议的一个关于被动成像方法的研讨会上，Claerbout表明，这个结果可以直接从声功率守恒原理中得到。在本文中，我简要回顾了这一推导过程，并表明，三维推广可以得到沿着相同的线使用功率互易定理。由此产生的表达式证实了Claerbout9的猜想，即“通过将在表面上两个位置记录的噪声轨迹互相关，我们可以构建在其中一个位置记录的波场，如果在另一个位置有一个源。
In 1968 Claerbout showed that the reflection response of a horizontally layered medium can be synthesized from the autocorrelation of its transmission response. During a workshop on passive imaging methods at the 2002 SEG conference, Claerbout showed that this result can be obtained straightforwardly from the principle of conservation of acoustic power. In this paper I briefly review this derivation and show that the 3D generalization can be obtained along the same lines using a power reciprocity theorem. The resulting expression confirms Claerbout9s conjecture that “by crosscorrelating noise traces recorded at two locations on the surface, we can construct the wave field that would be recorded at one of the locations if there was a source at the other.”