助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   seismic numerical simulation 的翻译结果: 查询用时:0.007秒
图标索引 在分类学科中查询
所有学科
地质学
地球物理学
更多类别查询

图标索引 历史查询
 

seismic numerical simulation
相关语句
  “seismic numerical simulation”译为未确定词的双语例句
     Seismic numerical simulation in different conditions was done by solving wave equation and changing the surface border conditions.
     通过改变模型表面边界条件,求解波动方程实现多情景地震数值模拟.
短句来源
  相似匹配句对
     The Numerical Calculation of Seismic
     覆岩破坏地震波场特征数值计算
短句来源
     On numerical simulations of seismic wavefield
     地震波场数值模拟方法
短句来源
     Numerical modeling for seismic origins
     震源数值模拟
短句来源
     Numerical Simulation for Seismic Exploration with Vibrator
     可控震源地震勘探的数值模拟
短句来源
     Numerical simulation of explosion seismic waves
     爆炸地震波模拟研究
短句来源
查询“seismic numerical simulation”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
没有找到相关例句


In 1996,Zeng brought a method forward for eliminating the netlike diffractive and interferential wave caused by stepshaped slopes when rectangular meshes were used in seismic numerical simulations.This method uses a weighted function to smooth the slope boundary between two layers.This paper discusses the properties of the weighted function,the method to get relative parameters for the weighted function,and the function's figure with respect to some different parameters.The normalized factor C can be obtained...

In 1996,Zeng brought a method forward for eliminating the netlike diffractive and interferential wave caused by stepshaped slopes when rectangular meshes were used in seismic numerical simulations.This method uses a weighted function to smooth the slope boundary between two layers.This paper discusses the properties of the weighted function,the method to get relative parameters for the weighted function,and the function's figure with respect to some different parameters.The normalized factor C can be obtained from the nonnormalized weighted function.As required,this paper defines the parameter s that denotes the smoothness of the weighted function.The attenuation factor σ can be determined from the cell size of the mesh and s,and then the weighted function can be determined.In this paper,a numerical simulation for a model with only one slope is realized.As a rule,the parameter s can be 0.2 or larger than 0.2.Some numerical simulations for slopes with different angles show the applicability of the same parameter choice for the variation of slope's angles.

为了消除采用矩形网格的地震波正演计算中,台阶状倾斜界面引发的绕射波和网状干扰波,Zeng提出网格细分加权平滑方法。本文对该方法中加权函数的性质和参数的求取进行了讨论,给出了加权函数的图形和参数选取的办法。规格化因子C可以通过非规格化的加权函数计算。根据需要,定义了表征加权函数平滑度的参数s。由确定的网格大小与s计算衰减因子σ,就可以确定加权函数。对于含有一个倾斜界面的模型进行了数值模拟。一般情形下,参数s必须大于或等于0.2。通过对不同倾角倾斜界面的数值计算,显示了相同参数选择对于地层倾角变化的适应性。

The conventional filtering method can not work well in marine seismic multiple attenuating for shallow water.Seismic numerical simulation in different conditions was done by solving wave equation and changing the surface border conditions. Seismic with multiple produced by strong reflection of sea surface can be modeled with free border conditions,and seismic without multiple can be modeled with absorbing border conditions.That the multiple produce by strong reflection of sea surface...

The conventional filtering method can not work well in marine seismic multiple attenuating for shallow water.Seismic numerical simulation in different conditions was done by solving wave equation and changing the surface border conditions. Seismic with multiple produced by strong reflection of sea surface can be modeled with free border conditions,and seismic without multiple can be modeled with absorbing border conditions.That the multiple produce by strong reflection of sea surface has changed amplitude,frequency and phase of the effective reflected wave,can be seen after the compare of seismic simulated in different border conditions.The filtering operators for attenuating multiple can be calculated by the normalized method,and then they are worked on the seismic with multiple.The compares between the stacked seismic sections show that the normalized filtering operators work well in attenuating the seismic multiple,and the seismic resolution is improved after process.Thereafter,according the conditions affecting the multiple,the method to calculate normalized filtering operator for real seismic acquired in shallow sea fields is presented.They can be calculated using seismic simulated based on the simplified model of real conditions,in which the sea water depth,the shots' depth and the receivers' depth are more important.

常规滤波方法对浅海多次波压制不能取得理想效果.通过改变模型表面边界条件,求解波动方程实现多情景地震数值模拟.利用自由边界条件模拟时获得含海平面强反射多次波地震记录,而利用吸收边界条件时得到理想条件下无多次波地震记录.对比分析多次波对有效地震信号的影响得到海平面强反射多次波改变了有效地震信号的振幅、频率和相位.利用归一化方法计算得到压制多次波滤波器算子,并作用于含海平面强反射多次波地震记录.叠加地震剖面对比分析表明,归一化滤波器算子较好的压制了地震记录中的多次波,提高地震资料分辨率.最后,根据多次波产生条件,给出了利用实际区域简化地质模型的地震数值模拟结果计算归一化滤波器算子的方法,从而利用该方法压制实际地震数据中多次波.

 
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关seismic numerical simulation的内容
在知识搜索中查有关seismic numerical simulation的内容
在数字搜索中查有关seismic numerical simulation的内容
在概念知识元中查有关seismic numerical simulation的内容
在学术趋势中查有关seismic numerical simulation的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社