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噪音衰减
相关语句
  noise attenuation
     Prestack noise attenuation application to high resolution seismic processing
     叠前噪音衰减技术在高分辨率处理中的应用
短句来源
     3D random noise attenuation (3D RNA) ,a new 3D noise removal,is put forward here.
     本文提出一种新的三维去噪法方──三维随机噪音衰减(3-DRNA)。
短句来源
     According to these accomplishments, several techniques are expounded emphatically in this paper, including 3D refraction statics, coherent noise suppression by prestack wave field separating (prestack FX noise attenuation), 3D prestack multiple domain random noise attenuation, multiples attenuation, NMO of unsymmetrical hyperbola, dynamic replacement of wave equation, surface-inconsistent residual static, super bin stacking, poststack depth migration and prestack depth migration.
     本文根据项目组研究成果,重点闸述了三维折射波静校正技术,叠前波场分离相干噪音压制方法(叠前FX去噪),叠前三维多域随机噪音衰减技术,多次波衰减技术,非对称双曲线动校正技术,波动方程动态替换技术,非地表一致性的剩余时差静校正技术,超面元迭加处理技术,叠后深度偏移处理,叠前深度偏移处理等。
短句来源
     Data processing involved model-inversion based refraction static correction, surface consistent amplitude compensation, deconvolution, and pre-stack noise attenuation. As the result, seismic data with a high fidelity was provided for the subsequent reservoir predictions, small-amplitude structure interpretation and integrative geologic study.
     资料处理中采用基于模型反演的折射波静校正、 地表一致性振幅补偿和反褶积、叠前噪音衰减等 技术,为后续的储层预测、低幅度构造解释和综 合地质研究提供了高保真的地震资料;
短句来源
     to improving resolution based on amplitude fidelity, the target peocess-ing in the whole area was conducted using DMO stack, 3D random noise attenuation, surface-consistent deconvolution and predicting deconvolution combination, and inverse-Q filter etc. .
     在处理时还重点采用了DMO叠加技术、三维随机噪音衰减技术、地表一致性反褶积与预测反褶积串连、反Q滤波等提高分辨率技术对全区的地震资料进行目标处理,达到了在保真的前提下,提高全区资料的分辨率。
短句来源
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  “噪音衰减”译为未确定词的双语例句
     ⑤In CGG sps ,there is random noiseattenuation method of FXNAT and FXYNA. And there is RNA and RNA_3Dcorrespond to those in OMEGA sps. But the effect of RNA and RNA_3D is moreobviously than FXNAT and FXYNA.
     ⑤随机噪音衰减,CGG 中有 FXNAT 和 FXYNA 模块,OMEGA 中有RNA 和 RNA_3D 模块,其效果均较好,RNA 和 RNA_3D 衰减效果更明显。
短句来源
     Attenuation of random noise in(f-x,y) domain
     三维f-x,y域随机噪音衰减
短句来源
     Several data processing techniques could be used such as improvement of SNR with composite noise elimination method, broadening of effective frequency bandwidth, sampling with small rate, deconvolution with zero-phase wavelet, consistent energy compensation, frequency-divided static correction, fine velocity analysis, and poststack high frequency compensation.
     针对性的解决方法主要包括:采用综合有效的噪音衰减方法提高资料信噪比,拓宽资料有效频带宽度,采用小的时间采样处理,使用零相位子波反褶积,进行一致性能量补偿,用分频剩余静校正法作剩余时差校正,精准的速度分析,叠后进行高频补偿处理拓宽资料频带宽度。 采用这些方法处理的资料分辨率得到较好的提高,对地质成像及储层预测起到了积极的作用。
短句来源
     AbstractA PS/PA LIPN latex damping coating has been de-veloped, and the mechanical properties and dampingextent for noise of the coating film have been studiedsystematically through change of component ratio ,in-organic fillers and introduction of polar monomers (e.g. AA, HEA).
     通过改变组分比、无机颜填料类型及引入极性单体(AA、HEA)的比例,系统研究了涂层的力学性能和噪音衰减程度。
短句来源
     This paper presented a new approach for stacking velocity analysis, and discussed the principles, procedure, applicability, and applications of suppression of prestack random noises and outliers based on the new stacking velocity analysis method.
     提出了一种新的叠加速度分析方法,并详细描述了基于这种新的叠加速度分析进行叠前随机噪音衰减和野值压制的原理、实现步骤、应用条件以及应用效果。
短句来源
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  相似匹配句对
     NOISE
     噪音
短句来源
     Attenuation of random noise in(f-x,y) domain
     三维f-x,y域随机噪音衰减
短句来源
     THE ANNOYANCE OF NOISE
     噪音骚扰
短句来源
     Attenuation: 2;
     衰减2;
短句来源
     An Algorithm of Noise Reduction Based on Chaotic Synchronization
     一种基于混沌同步的噪音衰减算法
短句来源
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  noise attenuation
In addition to emphasizing the importance of multi-scattering, this work endeavors to find the appropriate cap angle of the control source to achieve acceptable noise attenuation for different vibrating modes of the primary source (monopole, dipole).
      
Beamforming with the generalized sidelobe canceller for coherent noise attenuation in 3D seismic data
      
Data processing involved model-inversion based refraction static correction, surface consistent amplitude compensation, deconvolution, and pre-stack noise attenuation.
      
This paper introduces an image processing technique into seismic data processing as a noise attenuation technology.
      
The most homogeneous dip-scanning method using edge-preserving smoothing for seismic noise attenuation
      
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3D random noise attenuation (3D RNA) ,a new 3D noise removal,is put forward here. Its presumptive prerequisite is that partial reflection event is in plane so that the signals at the same frequency are predictable in all directions in (f- x,y) do main. As a result,noise removal can be achieved by determining a rectangular predictive filtering operator with the use of the least-square principle of multitrace complex number.Theoretical and real processing data show that this 3D method is much better than usual...

3D random noise attenuation (3D RNA) ,a new 3D noise removal,is put forward here. Its presumptive prerequisite is that partial reflection event is in plane so that the signals at the same frequency are predictable in all directions in (f- x,y) do main. As a result,noise removal can be achieved by determining a rectangular predictive filtering operator with the use of the least-square principle of multitrace complex number.Theoretical and real processing data show that this 3D method is much better than usual predictive noise attenuation (2D RNA) in f-x domain. This method is very effective on noise attenuation because it makes full use of 3D information and shows complete geological structure. Such noise removal brings the seismic data which exhibit clear fault points and spontaneous wave forms, without coherent earthworm phenomenon.

本文提出一种新的三维去噪法方──三维随机噪音衰减(3-DRNA)。该法假设反射波同相轴在局部为平面,因而在f-x,y域空间的所有方向上,同一频率成分的信号均具有可预测的特点。这样便可以采用多道复数最小平方原理,求出一个矩形预测滤波算子,达到去噪的目的。通过理论试验及实际资料的处理,表明这种三维去噪方法明显好于常规二维f-x域预测去噪(2-DRNA)方法。因为该法能充分利用三线信息、完整地保留构造形态,去噪能力更有效。去噪后,断点清晰、波形自然、无相干蚯蚓化等现象。

AbstractA PS/PA LIPN latex damping coating has been de-veloped, and the mechanical properties and dampingextent for noise of the coating film have been studiedsystematically through change of component ratio ,in-organic fillers and introduction of polar monomers (e.g. AA, HEA). It has shown that increase of the vol-ume of rotation prohibited monomer in the main chaincan not only improve the compatibility of the system .but also increase the adhesion of the coating film. Ad-dition of inorganic fillers can increase...

AbstractA PS/PA LIPN latex damping coating has been de-veloped, and the mechanical properties and dampingextent for noise of the coating film have been studiedsystematically through change of component ratio ,in-organic fillers and introduction of polar monomers (e.g. AA, HEA). It has shown that increase of the vol-ume of rotation prohibited monomer in the main chaincan not only improve the compatibility of the system .but also increase the adhesion of the coating film. Ad-dition of inorganic fillers can increase the damping ef-fective value ,as well as expand the temperature rangefor effective damping ,and flake structure fillers ,e. g.mica has shown the best result. Addrtion of inorganicfillers also helps reduce the noise and formulate adamping coating that can reduce the noise 5~8 dB/mm .

通过改变组分比、无机颜填料类型及引入极性单体(AA、HEA)的比例,系统研究了涂层的力学性能和噪音衰减程度。结果表明,主链结构中增加旋转阻力大的单体,阻尼值增高。共聚链段中引入极性单体,不仅改善体系的相容性,而且提高涂层的附着力。无机填料提高了阻尼值,也使阻尼温度区间加宽,片状结构的云母效果最佳。添加无机填料,有助于噪音衰减,可以制备衰减噪音5~8dB/mm的阻尼涂料。

The problem of multiple reflection in Yili area is always the main interference to prevent technicians from getting seismic reflections in deep area and making clear the geological conditions of petroleum reservation. The key to get breakthrough in this area's exploration is to decrease multiples effectively. In this paper, the authors select some proper methods to make clear the differences between primary and multiples by means of analyzing the characteristics of multiples in detail. In the process of multiples...

The problem of multiple reflection in Yili area is always the main interference to prevent technicians from getting seismic reflections in deep area and making clear the geological conditions of petroleum reservation. The key to get breakthrough in this area's exploration is to decrease multiples effectively. In this paper, the authors select some proper methods to make clear the differences between primary and multiples by means of analyzing the characteristics of multiples in detail. In the process of multiples decreasing, the anthors take several effective techniques such as deconvolution, FK filtering, τ-P transformation, time variable internal mute and etc. In the process of energy compensation in deep area, automatic residual static and random noise decreasing are used repeatedly. By means of these methods, not only the energy of primary reflection was enhanced, but also they have better continuity and can be traced easily. The result is true and reliable.

伊犁地区多次波问题一直是限制该区石油地质研究及获得深层地震反射资料的主要干扰,有效地压制多次波是该区油气勘探获得突破的关键,本文通过对伊犁地区多次波特征的分析,选取合理的识别方法分辨一次波和多次波,在衰减多次波过程中,综合使用了反褶积、F-K滤波、τ-P变换和时变下切除等手段,在补偿深层能量处理中,采用多次自动剩余静校正迭代和随机噪音衰减等方法。利用这些方法所处理的地震剖面多次波得到有效衰减,一次波反射能量加强,真实可信,并且有一定的连续可追踪性。

 
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