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首页> 外文期刊>Geophysics: Journal of the Society of Exploration Geophysicists >Simultaneous sources separation via multidirectional vector-median filtering
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Simultaneous sources separation via multidirectional vector-median filtering

机译:通过多方向矢量中值滤波同时分离光源

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Simultaneous source acquisition technology, also referred to as "blended acquisition," involves recording two or more shots simultaneously. Despite the fact that the recorded data has crosstalk from different shots, conventional processing procedures can still produce acceptable images for interpretation. This is due to the power of the stacking process using blended data with its increased data redundancy and inherent time delays between various shots. It is still desirable to separate the blended data into single shot gathers and reduce the crosstalk noise to achieve the highest seismic image quality and for standard prestack processing, such as filtering, statics computation, and velocity analysis. This study introduced a new and simple multidirectional vector-median filter (MD-VMF) to separate the blended seismic shot gathers. This method extended the well-known conventional median filter from a scalar implementation to a vector version. More specifically, a vector median filter was applied in many trial directions and the median vector was chosen from among these. We demonstrated the effectiveness of our proposed MD-VMF on simulated data generated by blending synthetic and real marine seismic data.
机译:同步源采集技术,也称为“混合采集”,涉及同时记录两个或多个镜头。尽管记录的数据有来自不同镜头的串扰,但是常规处理程序仍可以产生可接受的图像以供解释。这是由于使用混合数据的堆叠过程的强大功能,以及增加的数据冗余性和各个镜头之间固有的时间延迟。仍然需要将混合后的数据分离为单个镜头集,并降低串扰噪声,以实现最高的地震图像质量,并进行标准的叠前处理,例如滤波,静力学计算和速度分析。这项研究引入了一种新的简单的多向矢量中值滤波器(MD-VMF)来分离混合的地震炮弹集。该方法将众所周知的常规中值滤波器从标量实现扩展到矢量版本。更具体地说,在许多试验方向上应用了矢量中值滤波器,并且从这些方向中选择了中值矢量。我们通过将合成地震数据与真实海洋地震数据混合生成的模拟数据证明了我们提出的MD-VMF的有效性。

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