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时间域
相关语句
  time domain
    THE RECOGNITION AND SUPPRESSION OF SINGLE FREQUENCY INTERFERENCE WAVE IN TIME DOMAIN
    时间域单频干扰波的识别与压制
短句来源
    Transient electromagnetic methods, and again call Time domain electromagnetic methods, brief name TEM.
    瞬变电磁法(Transient Electromagnetic Methods),又称时间域电磁法(Time Domain Electromagnetic Methods),简称TEM。
短句来源
    On the basis of the analysis of the hypothesis in surface-consistent model,the conjugate gradient method is applied to decompose the seismic record in time domain in terms of the surface-consistent precondition and model.
    通过对地表一致性数学物理模型的前提条件进行剖析 ,合理地确定了反射振幅一致性校正模型 ,并依据该模型及其实现条件提出使用共轭梯度方法在时间域对地震记录进行谱分解处理 .
短句来源
    The concentration and component zonation of anomalies shows the duration and changes of mineralization within a certain geological time domain. The same component zonation is seen in the horizontal and axial directions, and from the center to the margin, it shows a zonation of Cd-Ge-Bi-As-Ga-Cu-Mo-Zn-Pb-Ag-Ba-Mn-V-W.
    异常的浓度与组分分带反映的是一定时间域内成矿作用的延续与变化,纵向与轴向上具相同的组分分带,由中心至边缘的组分分带为Cd、Ge、Bi、As、Ga、Cu、Mo、Zn、Pb、Ag、Ba、Mn、V、W。
短句来源
    A method for successively separating out seismic signals in time domain
    地震记录道信号在时间域逐次分离的方法
短句来源
更多       
  time-domain
    TIME-DOMAIN AND FREQUENCY-DOMAIN THREE DIMENSIONAL TENSOR GREEN'S FUNCTION IN A HOMOGENEOUS CONDUCTIVE HALF SPACE AND ITS APPLICATION
    均匀导电半空间中频率域和时间域三维电张量格林函数及应用
短句来源
    in 1993, afinite-difference, time-domain solution to Maxwell's equation has been developedfor a 3-D subsurface and topography .
    (1993)算法的基础上,针对地形起伏的三维地电模型,提出了 Maxwell 微分方程组的一种时间域有限差分解法。
短句来源
    Three methods for estimating the signal/noise ratio of seismic data are recommended here,which are stack method,time-domain SVD method and frequency domain SVD meth0d (SVD: singular-value decomposition).
    本文给出了计算信噪比的三种不同方法,即叠加法、时间域SVD法和频率域SVD法。
短句来源
    Time-domain SVD method may be taken when the seismic signals on different traces 0nly show amplitude change.
    当各道之间的地震信息仅存在振幅变化时,可采用时间域SVD方法进行信噪比估算;
短句来源
    When the objective interval is thicker than/4, sand thickness prediction using frequency-domain parameters is more accuratethan sand thickness prediction that introduces time-domain parameters.
    振幅线性预测方法的精度最差。 另外,当目的层最大砂岩厚度超过λ/4时,用频率域参数预测砂岩厚度比用时间域参数预测的精度高。
短句来源
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  temporal domain
    GEOSTATISTICS OF MULTIVARIATE INFORMATION IN TEMPORAL DOMAIN
    纯时间域多元信息地质统计学
短句来源
    This paper researches into some kriging theory in temporal domain and lays stress on the discussion of the ordinary kriging(TOK), the simple kriging(TSK) and universal kriging (TUK) in the pure temporal domain. At the same time, it summarizes the cokriging(TCOK) and indicator kriging(TIK) in the pure temporal domain briftly.
    本文在时间域内对几种纯时间域克立格技术进行了研究,重点对纯时间域中的普通克立格(TOK)、简单克立格(TSK)及泛克立格(TUK)进行了论述,也对纯时间域中的协同克立格(TCOK)和指示克立格(TIK)作了简要的概括。
短句来源
  “时间域”译为未确定词的双语例句
    After theoretical model research,19 seismic attributive parameters in time and frequency domains can be derived fromthe seismic informations of objective interval so as to cope with above problems.
    为克服上述问题,本文通过理论模型研究,并结合实际地震资料,从时间域和频率域中提取了目的层的19个地震信息属性参数。
短句来源
    The wavelet transform is of good localization property in time and frequency domain, and it has good prospects in seismic processing.
    小波变换同时有在时间域和频率域对信号进行局部化的特点 ,使其在地震资料处理中越来越发挥较大的作用。
短句来源
    MIGRATING AND IMAGING METHOD OF TIME-DOMAIN ELECTROMAGNETIC FIELD
    时间域电磁场偏移成像方法研究
短句来源
    Fourth, the attributes of the three kinds of seismic waves in time and frequency domainwere picked up, and the corresponding relationship between the scale of heterogeneousgeologic bodies and seismic attributes was concluded. When the scale of geologic bodies andwavelength can be comparable or the scale of geologic bodies is smaller than wavelength (a/λ≤1), the attribute values of the three kinds of seismic waves increased as theautocorrelation lengths became larger.
    4.提取了三种地震波时间域和频率域的地震属性,得出非均匀地质体尺度与地震属性的对应关系:当非均匀地质体尺度与波长相比拟或更小(a/λ≤1)时,三种地震波在时间域和频率域的属性参数值随地质体尺度的增大而增大;
短句来源
    Also, the research for 3-D forwardproblem of TEM can offer necessary theoretic base and instruction to reverseinterpretation, and the research for transient electromagnetic response is the key ofimproving degree of applying TEM and precision of data interpretation.
    同时,国内对三维瞬变电磁法的研究还处于起步阶段,研究三维瞬变电磁的正演问题可以为三维时间域电磁法的反演解释提供必要的理论指导和基础; 研究三维模型的瞬变电磁响应也是提高国内 TEM 应用水平和解释精度的关键,具有重要的理论和现实意义。
短句来源
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  time domain
Our proofs proceed in the time domain and allow us to represent each solution regardless of the spectral radius of P(0):=2-s∑cα, which has been a difficulty in previous investigations of this nature.
      
A Time Domain Characterization of the Fine Local Regularity of Functions
      
In this paper, the global and local linear independence of any compactly supported distributions by using time domain spaces, and of refinable vectors by invariant linear spaces are investigated.
      
For the finite-difference time domain (FDTD) method, the electromagnetic scattering problem, which requires the characteristic structure size to be much smaller than the wavelength of the exciting source, is still a challenge.
      
The discrete spectrum of the field after continuation is obtained from difference methods for Maxwell's curl equations in frequency-domain, and the time domain solution of the original problem is derived from their inverse Fourier transform.
      
更多          
  time-domain
Hybrid method of combined difference and spectrum for time-domain maxwell's equations
      
To circumvent this difficulty, this paper presents a novel hybrid numerical technique of combined difference and spectrum for time-domain Maxwell's equations.
      
Although the structure of frequency shift filter is more complicated than the time-domain filter, it uses both time correlations and frequency spectrum correlations so it can achieve better performances on separating the overlapping signals.
      
The transient pulse signal fidelity has also been investigated by finite-difference time-domain (FDTD) method.
      
The modified TEM horn antenna with distributed resistor load is presented in this paper, and the radiation properties of the antenna with the shields and absorbers are studied through the three-dimensional finite-difference time-domain (FDTD) scheme.
      
更多          
  temporal domain
We generalize a class of neural network models that extend the Kohonen Self-Organising Map (SOM) algorithm into the sequential and temporal domain using recurrent connections.
      
The latter further was reduced to a differential system by using the new method for temporal domain presented in this paper.
      
The latter further was reduced to a differential system by using the new method for temporal domain presented in this paper.
      
Firstly, the spatial space and temporal domain are discretized by FEM and precise integral algorithm respectively.
      
Conclusion: The results indicate that benzodiazepines impair visual integration in the temporal domain.
      
更多          


Polarization analysis of three-component seismic records is a useful means for studying seismic waves, and is widely used to investigate the anisotropy and lateral heterogeneity of the earth medium.This paper presents a computer program POLALYS which,besides some data processing routines, performs polarization analysis by the single value decomposition (SVD) method in time or frequency domain, as well as by the conventional particle motion diagrams. The analyses of surface waves along four paths within continental...

Polarization analysis of three-component seismic records is a useful means for studying seismic waves, and is widely used to investigate the anisotropy and lateral heterogeneity of the earth medium.This paper presents a computer program POLALYS which,besides some data processing routines, performs polarization analysis by the single value decomposition (SVD) method in time or frequency domain, as well as by the conventional particle motion diagrams. The analyses of surface waves along four paths within continental China are shown in this paper which clearly demonstrate the effect of laterally heterogeneous velocity structure on the propagation of the waves.

利用三分量地震记录进行偏振分析可以研究地球介质的各向异性和横向不均匀性.本文介绍偏振分析程序POLALYS在面波研究中的应用.除了提供一些常规的数据处理技术外,该程序利用时间域或频率域中的奇异值分解法(SVD)和传统的质点轨迹图方法进行地震波的偏振分析.分析了沿4条不同路径传播的地震面波,从中可清楚地看出速度结构的横向不均匀性对面波传播的影响.

The FDEM responses of 3D body are calculated by integral equation method, which can be changed into TDEM responses by inverse cosine tranform. To explain the sign reversals of TDEM responses in late time stage, Cole-Cole model which describes the character of frequency-diversity of resistivity of polarizable body are introduced into the direct calculation. It has been shown that IP effects on TDEM field are influenced by the the geometric, electrical and IP parameters.

利用并矢格林函数理论和积分方程方法计算两层大地中三维异常体的频率域电磁响应,并利用反余弦变换方法将其转换为时间域电磁响应.为了解释时间域电磁响应晚期段经常出现的场值变号现象,将描述电阻率频散特征的Cole-Cole模型引入到正演计算之中.计算表明,时间域电磁法的激电效应(IP)特征不仅受异常体的激电及电阻率参数的影响,而且受异常体的几何参数影响.

Wavelet transform is of good localization property in signal analysis. Both correlation of effective signals and randomness of random noises remain in wavelet transform domain, so that noise elimination can be achieved in the dornain. Wavelet transform involves the two-variate function of frequency and time, which makes it convenient to simultaneously compensate for attenuation of seismic energy in frequency and time domains. It is experimentally shown that to achieve noise elimination and resolution improvement...

Wavelet transform is of good localization property in signal analysis. Both correlation of effective signals and randomness of random noises remain in wavelet transform domain, so that noise elimination can be achieved in the dornain. Wavelet transform involves the two-variate function of frequency and time, which makes it convenient to simultaneously compensate for attenuation of seismic energy in frequency and time domains. It is experimentally shown that to achieve noise elimination and resolution improvement by using wavelet transform brings desirable convenience,high efficiency and good fidelity.

小波变换在信号分析中具有良好的局部化特性。在小波变换域中,有效信号的相关性和随机噪声的随机性仍然保留,因此可以在小波变换域内对地震资料进行去噪处理;小波变换作为频率和时间的二元函数,使之可以很方便地在频率和时间域中同时进行地震波能量的吸收衰减补偿。试验证明,利用小波变换去噪和提高分辨率,不仅方便有效,而且有很好的保真度。

 
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