海洋地震反射勘探数据中源和接收器鬼影的分解与利用
Decomposition and utilization of source and receiver ghosts in marine seismic reflection survey data
AI总结：
本研究通过镜像效应分解并利用鬼影信号，提高海洋地震数据的信噪比和带宽，以更清晰地成像地下结构。
摘要：
在海洋地震反射勘探中，大多数数据仅包含由水听器阵列接收的压力信号。这些获取的数据受到频率带宽限制，这是由于人工源（如空气枪）生成的地震信号受到表面反射鬼影信号的污染所致。本研究开发了一种方法，利用镜像效应来控制这些信号，并通过虚拟地震源在实际源镜像位置生成的信号来成像地下结构。处理结果表明，分解后的鬼影信号可以被视为额外的勘探数据，以提高信噪比并拓宽带宽。
英文摘要：
In marine seismic reflection surveys, most data comprise only the pressure acquired by a hydrophone array. The acquired data are subject to frequency bandwidth limitations caused by the contamination of surface-reflected ghost signals associated with seismic signals generated by artificial sources such as airguns. This study developed a method to exploit the mirror-image effect to control these signals and image the subsurface structure using signals generated by virtual seismic sources at locations mirroring actual sources. The processing results indicate that decomposed ghost signals can be regarded as additional survey data to enhance the signal-to-noise ratio and widen bandwidth.
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