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子波一致性
相关语句
  wavelet coherence
     Application of a wavelet coherence method data processing-for Iran Kashan block as an example.
     子波一致性校正方法在地震资料处理中的应用——以伊朗Kashan区块为例
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  “子波一致性”译为未确定词的双语例句
     As the most widely used marine source, air-gun has many advantages with stable behavior, well uniform wavelet, broad spectrum, adequate low and high frequency.
     空气枪具有性能稳定可靠,子波一致性好,频带宽,高频和低频成分丰富等特点,已经成为海上地震勘探中应用最广泛的震源。
短句来源
     In this dissertation lithology-oriented processing technology series includingpre-stack/post stack S/N ratio enhancement technique, relatively preserved amplitude toincrease resolution technique and wavelet consistent processing technique were analyzed andstudied based on the analysis of geological character and raw data feature of Hu19 faultblock in Dongpu sag.
     本文在充分分析东濮凹陷胡 19 断块目标区地质特征和原始资料特点基础上,对岩性目标处理配套处理技术:叠前叠后提高信噪比处理技术、相对保持振幅提高分辨率处理技术、子波一致性处理技术等进行了分析对比研究。
短句来源
     This method enables the quality difference to be well removed in data processing for Iran Kashan block.
     在资料处理中,采用了子波一致性校正方法,较好地解决了炸药震源与可控震源激发单炮资料品质差异大的问题。
短句来源
  相似匹配句对
     FOUR COMPONENT SURFACE CONSISTENT WAVELET DECONVOLUTION
     四分量地表一致性子波反褶积
短句来源
     Coherence is Beautiful
     美丽的一致性
短句来源
     WAVELET ANALYSIS
     子波分析
短句来源
     Converted-wavelet section.
     换子波剖面
短句来源
     Have goal consistency;
     具有目标一致性;
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  wavelet coherence
Both the cross-wavelet transform (XWT) and wavelet coherence (WTC) indicate the prominent period with 95% confidence level, namely the Schwabe cycle of about 11 years.
      
For each pair of series the wavelet coherence is calculated.
      
Meaningful results were reduced from the filtered Wavelet coherence and bicoherence maps.
      
More research is also needed on the properties and usefulness of the cross-wavelet, wavelet coherence, and coand quadrature spectra.
      
Squared wavelet coherence between the normalized estimated and instrumental area burned data over their common interval 1917-1981.
      
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he pilot survey of the Sino-American project INDEPTH has provided a highresolution, high-signal-to-noise ratio, near-vertical incidence reflection profile with abundant reflection information, which along with others yields clearly the Main Himalayan Thrust (MHT) and Moho discontinuity at a depth of 70-80km. There still are observed reflections beneath the Moho discontinuity. It is demonstrated by facts, that the near-vertical reflection technique can receive reflections from a depth of 70-80km, with three technical...

he pilot survey of the Sino-American project INDEPTH has provided a highresolution, high-signal-to-noise ratio, near-vertical incidence reflection profile with abundant reflection information, which along with others yields clearly the Main Himalayan Thrust (MHT) and Moho discontinuity at a depth of 70-80km. There still are observed reflections beneath the Moho discontinuity. It is demonstrated by facts, that the near-vertical reflection technique can receive reflections from a depth of 70-80km, with three technical measures, such as 50m deep shot holes, 50kg dynamite and 50s superlong recording time, taken. It is obvious, that both the depth o f shot hole and the lithology excited are interdependent factors, affecting recording quality. Data analysis indicates, that shot in a single drill hole of depth more than 25m yields good recording,while array shot in drill holes of depth less than 25m can hardly receive deep reflections. The recording quality could be much improved with technical approaches, as slurry cementing and tamping after charging. During seismic data processing in view of the fact, that the lithology excited along the profile is varied very dramatically. surface consistency processing of wavelets and noise elimination were made, resulting in great improvement of the deep reflection stacked section in quality.

中美INDEPTH项目第一阶段先导性试验,提供了高分辨率、高信噪比和反射信息非常丰富的近垂直反射剖面。其中主喜马拉雅滑脱界面(MHT)和深达70—80km的Moho,清晰可见;Moho以下仍有反射信息。事实证明.采用井深50m、药量50kg和50s超长记录长度3个技术措施后,近垂直反射技术可以取得深部反射信息。在工作中井深和激发岩性是影响记录质量的两个互相依赖的重要因素。资料分析表明.井深大于25m的单孔爆炸,其记录质量较好,而井深大于25m组合的炮记录,几乎接收不到深反射信息。钻井所采用的泥浆固井和装炸药后填井等技术措施,对提高记录质量有较大帮助。在地震数据处理工作中,针对激发岩性沿线变化剧烈,我们做了地表子波一致性处理和去噪处理,极大地提高了深反射叠加剖面的质量。

Static correction, denoising, and stack imaging are still the most important issues on seismic data processing as seen from the articles presented to the 65 th EAEG annual meeting. Sophisticated static correction methods such as tomographic static correction and wave-equation datuming are emerging. As for stack imaging, CRS stack and nonlinear diffusion filtering have been used to enhance the effects of seismic imaging in various seismic processing steps. Prestack processing methods such as prestack non-stretching...

Static correction, denoising, and stack imaging are still the most important issues on seismic data processing as seen from the articles presented to the 65 th EAEG annual meeting. Sophisticated static correction methods such as tomographic static correction and wave-equation datuming are emerging. As for stack imaging, CRS stack and nonlinear diffusion filtering have been used to enhance the effects of seismic imaging in various seismic processing steps. Prestack processing methods such as prestack non-stretching NMO, wavelet consistent processing, and 3-D velocity filtering to attenuate the linear noises has attracted significant attention.

在第 6 5届EAGE年会发表的有关地震资料处理方面的论文中 ,静校正、去噪和叠加成像技术仍然是资料处理中的一个重要话题。目前 ,静校正已由简单的高程静校正、折射静校正发展到层析静校正、波动方程基准面校正等。在叠加成像方面 ,CRS叠加、非线性扩散滤波等可直接用来提高地震成像质量。叠前的非拉伸动校、子波的一致性、三维速度滤波等叠前处理方法已引起人们的广泛重视。

Alternative sources are usually used for seismic acquisition due to laterally varying surface structure in complex area, which may cause obvious quality difference on raw data. Based on amplitude coherence and Robinson convolution model, wavelet coherence can shape the wavelet consistency of single shot for one source by matching wavelet filter. It is of high computating speed, better stability and good self-adaptability, the quality difference on raw data from by different sources can be removed effectively,...

Alternative sources are usually used for seismic acquisition due to laterally varying surface structure in complex area, which may cause obvious quality difference on raw data. Based on amplitude coherence and Robinson convolution model, wavelet coherence can shape the wavelet consistency of single shot for one source by matching wavelet filter. It is of high computating speed, better stability and good self-adaptability, the quality difference on raw data from by different sources can be removed effectively, the amplitude, frequency and phase of two kinds of raw data tend to be more coherent. This method enables the quality difference to be well removed in data processing for Iran Kashan block.

在地表条件复杂多变地区的地震勘探中,由于表层结构横向变化大,野外地震资料采集通常采用多种震源的交互施工方式,造成不同震源激发的原始单炮资料品质差异较大。为消除差异,常规处理多采用频率匹配、振幅匹配和反褶积等方法来调整不同震源单炮资料的频率和相位关系,但这种处理方式效率很低,甚至会影响叠前处理的效果。为此,对利用子波一致性校正消除不同震源原始单炮资料品质差异的方法进行了探讨。阐述了, 子波一致性校正方法的基本原理,即以振幅一致性校正为基础,根据反射系数一致性原理,利用Robinson褶积模型,通过相同位置接收不同震源激发得到的2种原始单炮资料的内在关系,设计匹配子波滤波器。伊朗 Kashan区块勘探程度较低,地表条件复杂多变,野外采集采用了可控震源和炸药震源激发方式。在资料处理中,采用了子波一致性校正方法,较好地解决了炸药震源与可控震源激发单炮资料品质差异大的问题。

 
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