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时间空间域
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  time-space domain
     This technique is used on the premise that at each frequency, the signals which have been converted from time-space domain into frequency-space domain can be expressed as the sum of complex exponential functions which are independent of wavelet waveform. In other words, such signals at each frequency may be considered as a linear event.
     这项技术的应用前提在于时间—空间域的信号变换到频率—空间域后,在每个频率上可以表示为与子波形状无关的一系列复指数函数之和,也就是说,频率—空间域中的信号在每个频率上都可看作是一个线性同相轴。
短句来源
     To perform τ-p transform in frequency -space domain is believed to have more advantages over the two conventional methods of doing it in time-space domain or in wavenumber domain.
     在频率—空间域实现τ—P变换,优于时间—空间域或频率—波数域两类传统的τ—p变换方法。
短句来源
     Inthe method, whole seismic record is taken as an unit in time-space domain;
     此方法是在时间—空间域内把整个地震记录作为一个整体进行处理。
短句来源
     According to two-dimension Fourier transform, the Rayleigh wave signal in time-space domain can be changed into two-dimension frequency wavenumber spectrum from which we can choose, pick up Rayleigh wave and suppress interference wave successfully.
     利用二维傅式变换可以将时间—空间域的瑞雷波信号转换为二维频率波数谱,从中选择和提取瑞雷基波,有效地压制干扰波.
短句来源
  “时间—空间域”译为未确定词的双语例句
     Then, by the contour integration technique,the basic solution in space-time domain to the plane elastodynamic problem of the layered media and the second kind of singular integral equations for crack propagating in layered media are given in a closed form.
     采用路径积分技术给出了层状介质平面弹性动力学问题的时间—空间域基本解,以封闭形式给出了层状介质中运动裂纹问题的第二类奇异积分方程组。
短句来源
     To common-mid-point gathers, it can restore the plane wave response and obtain reflection coeffieents with different ray parameters by transforming seismic data from t-x domain to τ-p domain.
     对共中心点道集,把地震反射数据从时间—空间域(t—x)变到r—p域,可以恢复平面波响应,求出不同入射方向时的平面被反射系数序列。
短句来源
     Aimed at the coherent noise in seismic data processing,the paper presented self adaptive coherent noise attenuation technique in time space domain,separating signal/noise.
     由于地表条件和地震波激发、传播以及接收条件等诸多方面的原因 ,时常引起地震记录上出现各种相干干扰波。 本文主要针对地震数据处理中地震剖面上存在的各种相干噪声 ,提出了时间—空间域自适应相干噪声衰减技术 ,以进行信噪分离。
短句来源
  相似匹配句对
     TIME DOMAIN ELECTRON SPIN RESONANCE
     时间电子自旋共振
短句来源
     Time——the Space of Development
     时间发展的空间
短句来源
     The author defines it as consciousness of sex, time and space, and hardships;
     时间空间意识;
短句来源
     Time, Time-space
     时间时间-空间
短句来源
     he local features in phase space and predictability are studied in this paper.
     讨论了混沌系统的时间空间的局特征。
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  time-space domain
The f-k transformation is applied to time-space domain wave equation in inhomogeneous anisotropic media.
      
For seismic imaging, the advantages and limitations of the traditional Kirchhoff migration and time-space domain finite-difference migration, when applied to 3-D complicated structures, are first analyzed.
      
Its data would fill an existing gap in the time-space domain of available observations obtained from existing space-borne sensors.
      
Such algorithms are especially well adapted to the cylindrical nature of the time-space domain and usually posses excellent stability characteristics.
      
This can be easily understood in the time-space domain, as shown in Figure 3.
      
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There are some shortpoints of slant stacking when calculated in time-space domain. According to the relationship between tau-p transform and Fourier transform. We provide a new method to calculate slant stacking in F-K domain. In this domain, to combine tau-p process with velocity filtering process gets easier, and high qualities can be alhieved.Based on the basic formulas of tau-p transform in F-K domain, We can do migration process directly in p-w domain to get our final imaging seismic section. Interpolation...

There are some shortpoints of slant stacking when calculated in time-space domain. According to the relationship between tau-p transform and Fourier transform. We provide a new method to calculate slant stacking in F-K domain. In this domain, to combine tau-p process with velocity filtering process gets easier, and high qualities can be alhieved.Based on the basic formulas of tau-p transform in F-K domain, We can do migration process directly in p-w domain to get our final imaging seismic section. Interpolation is used to eliminate the aliasing events in F-K space. Some of the results were examined in practical calculating.

针对时间—空间域倾斜迭加算法的一些缺点,本支根据倾斜迭加运算与富里叶变换的关系,提出在频率一波数域实现τ—p变换。在频率一波数域进行τ—p变换,还可与视速度滤波相结合,以便更有效地消除干扰波,提高处理质量。根据τ—p变换频率一波数域算法原理,提出了在τ—p域直接实现偏移处理,同时指出,为了避免假同相轴的干扰,必须进行插值处理。

To common-mid-point gathers, it can restore the plane wave response and obtain reflection coeffieents with different ray parameters by transforming seismic data from t-x domain to τ-p domain.Due to the effects of attenuation and dispersion on wave propagation,the plane wave reflection coefficients are frequency limitted,thus,accurate velocity and density profile can not be reconstructed by Carrion's matrix inversion method and other inversion methods and be applied to the interpretation of lithology and stratigraphy....

To common-mid-point gathers, it can restore the plane wave response and obtain reflection coeffieents with different ray parameters by transforming seismic data from t-x domain to τ-p domain.Due to the effects of attenuation and dispersion on wave propagation,the plane wave reflection coefficients are frequency limitted,thus,accurate velocity and density profile can not be reconstructed by Carrion's matrix inversion method and other inversion methods and be applied to the interpretation of lithology and stratigraphy. We developed Carrion's method and proposed that the linear programming inversion method is suitable to resolve the difficult problem.A good result has been obtained by this method by using single scattering approximation. The method can also be used for large offset data to invesse deep velocity and density profile.

对共中心点道集,把地震反射数据从时间—空间域(t—x)变到r—p域,可以恢复平面波响应,求出不同入射方向时的平面被反射系数序列。由于地震波传播过程中的衰减、扩散效应等,求得的平面波反射系数是有限带宽的,用一般的方法反演介质的速度、密度、波阻抗得出的结果精度很差,难以应用到岩性或地震地层学的解释。P.M.Carrion提出的应用振幅的反演方法中,对带限资料使用了矩阵反演方法,得出的结果还是不理想。本文发展了P.M、Carrion提出的方法:利用L_1模极小化问题的线性规划反演方法,首先恢复出真正的反射系数序列,然后可利用单散射近似的反射系数公式求取速度、密度分布。该方法可用于大偏移距的地震资料,反演深部的速度分布。

In this paper, the plane strain problem of a crack prpagating with arbitrary velocity in dissimilar layered media is discussed. The governing integral equations are established by using the integral transform method. Then, by the contour integration technique,the basic solution in space-time domain to the plane elastodynamic problem of the layered media and the second kind of singular integral equations for crack propagating in layered media are given in a closed form. Finally, the dynamic stress intensity factors...

In this paper, the plane strain problem of a crack prpagating with arbitrary velocity in dissimilar layered media is discussed. The governing integral equations are established by using the integral transform method. Then, by the contour integration technique,the basic solution in space-time domain to the plane elastodynamic problem of the layered media and the second kind of singular integral equations for crack propagating in layered media are given in a closed form. Finally, the dynamic stress intensity factors of the fast-propagating crack is obtained.

本文讨论了裂纹在任意层状介质中快速扩展的平面直变问题。应用积分变换方法建立了问题的控制积分方程。采用路径积分技术给出了层状介质平面弹性动力学问题的时间—空间域基本解,以封闭形式给出了层状介质中运动裂纹问题的第二类奇异积分方程组。得到了快速扩展裂纹的动态应力强度因子。

 
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