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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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应用叠前时间偏移/反偏移与crs-ois叠加削弱倾角歧视影响
Keywords: 偏移/反偏移,输出道方式的共反射面元方法,数据规则化,噪声压制,倾角歧视现象
Abstract:
？为了更好地削弱倾角歧视影响,将叠前时间偏移/反偏移与输出道成像方式的共反射面元叠加算法(commonreflectionsurfacestackbytheoutputimagingscheme,以下简称crs-ois)相结合,把常规预处理后的地震数据进行叠前时间偏移映射到成像空间,在该空间内实施crs-ois处理,再用相同的速度场将其反偏移到叠前数据空间.基于这种处理流程不仅得到信噪比明显提高的叠前地震数据,同时削弱了crs叠加方法固有的倾角歧视影响.理论数据与实际资料的处理结果均证实了该法的有效性和实用性.
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