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OALib Journal期刊
ISSN: 2333-9721
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基于扩展伪多道匹配的保幅型多次波压制方法
Keywords: 多次波压制,扩展伪多道匹配,屏蔽滤波器,高阶多次波,保幅
Abstract:
？波动方程预测减去法压制多次波主要分为两步:多次波模型预测和多次波匹配相减。两步骤同时决定着最终多次波压制效果的好坏。本文在现有srme方法基础上进行了改进。为了实现保幅条件下的多次波压制,除在匹配过程中采用扩展伪多道匹配方法之外,提出了三点改进:①按多次波阶次进行预测和匹配;②匹配前有效能量保持;③匹配过程中迭代应用短滤波器。通过sigsbee2b模型及实际资料试算,表明本文方法能够在较好保持有效能量的前提下得到更为理想的多次波压制剖面。
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