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本文提出用于地下成像无源地震方法的分析,在该方法中应用环境地震噪声作为地下散射体的照明源。该成像算法能够以递归方式将新的数据融入到成像中,这使成像背景噪声随时间减少。在空间域不相干环境背景噪声的假设前提下推导出成像算法的点-扩展函数。点-扩展函数表征成像的分辨率,即接收排列长度和环境带宽的函数。
This paper presents an analysis for a method of passive imaging of subsurface imaging in which ambient seismic noise is used as the source of illumination for subsurface scatterers. The imaging algorithm recursively incorporates new data into the imaging, which reduces the imaging background noise over time. The point-spread function of the imaging algorithm is deduced on the premise of the irrelevant ambient background noise in the spatial domain. Point-Expansion Function Characterizes the resolution of the image, as a function of the length of the received arrangement and the bandwidth of the environment.