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瞬时属性
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  instantaneous attributes
     Starting from the equation of instantaneous parameters and scale energy in wavelet domain,the paper considered that the energy attribute and 'instantaneous attributes in wavelet scale domain can represent attenuation character of seismic signal in a certain scale scope and defined them as attenuation attributes of seismic wave in wavelet scale domain.
     本文从小波域瞬时参数和尺度能量方程出发,提出小波尺度域的能量属性和瞬时属性在一定的尺度范围内可以表征地震信号的衰减特征,并把它们定义为小波尺度域地震波衰减属性。
短句来源
     On the methods of seismic data instantaneous attributes estimate in time-frequency domain
     时频域内地震资料瞬时属性提取方法研究
短句来源
     Instantaneous attributes estimator using in ground penetrating radar data
     瞬时属性估计器在探地雷达数据处理中的应用
短句来源
     Local structural entropy measure in frequency division is put forward to detect local discontinuities of seismic data,by the virtue of the instantaneous attributes based on wavelet transform.
     本文基于小波变换具有多尺度多分辨率分析的优点,提出了在特定的小波变换分频瞬时属性上,利用局部结构熵算法来检测地震数据的局部不连续性。
短句来源
     The attributes (average frequency,instantaneous bandwidth,twist and peak level ) obt ained from joint time-frequency distribution can break out the limitation of tr aditional instantaneous attributes,effectively point out the variation in geolog ic formation and be applied in seismic data interpretation as a good attributtes .
     由联合时频分布提取的地震属性 (平均频率、瞬时带宽、扭度、峰态 )可以突破传统的瞬时属性的局限 ,有效地指示地质层位的变化 ,可以作为较好的属性应用于地震资料解释中。
短句来源
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  instantaneous attribute
     Instantaneous attribute analysis based on orthogonal basis of compact supported wavelets
     基于紧支集正交小波基的瞬时属性分析
短句来源
     The quantitative analysis of static error and noise effect on instantaneous attribute.
     静校正误差和噪声对瞬时属性影响的定量分析
短句来源
     The instantaneous attribute analysis of seismic traces is usually achieved by using two methods, namely Hilbert transform in time domain and continuous wavelet transform.
     常见的地震道瞬时属性分析有两种方法:一是在时间域利用Hilbert变换来实现; 二是利用连续小坡变换来实现。
短句来源
     The instantaneous attribute analysis method based on orthogonal basis of compact supported wavelets, which uses characteristic of orthogonal basis of Daubechies' compact supported wavelets, expresses both Hilbert operator and oneorder differential operator in multi-resolution space, so that it analyses the instantaneous attributes of seismic traces in multi-resolution space.
     本文介绍的基于紧支集正交小波基的瞬时属性分析,是利用Daubechies紧支集正交小波基的特性,它可以将Hilbert算子和一阶微分算子在多分辨空间中进行表示,从而可以进行多分辨分析空间中的地震道的瞬时属性分析。
短句来源
  “瞬时属性”译为未确定词的双语例句
     The author using the linear time-frequency theorem such as the short-time Fourier transform, wavelet transform and S transform (include generalized S transform) computes time-frequency parameter. According to the computed time-frequency parameter result, the author not only develops the method to increase the resolution and signal-noise ratio, but also extract the instantaneous parameter and determine the depth variety of thin layer.
     本论文从线性时频分析理论出发,把短时傅立叶变换、小波变换及S变换(包括广义S变换)用于时频参数的提取,根据时频参数改善地震资料的分辨率、提高地震资料的信噪比、求取瞬时属性参数以及确定薄层的厚度变化。
短句来源
     When the reservoir was filled with gas or oil, the reflected seismic energy would be attenuated in high frequency and be enhanced in low frequency.
     由单频率段的复地震道进一步求取瞬时属性,得到了广义“三瞬”,即广义瞬时振幅、瞬时频率、瞬时相位(也称单频段的瞬时振幅、瞬时频率、瞬时相位)。
短句来源
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  instantaneous attributes
Further insight into the nature of temporal behavior is obtained from the analysis of the instantaneous attributes of each IMF.
      
Traditional methods of complex trace analysis give the instantaneous attributes only as a function of time or frequency.
      


Seismic signal attribute analysis plays an important role in the interpretation of seismic data. Traditionally, we computed attribute of the complex trace in terms of the Hilbert transform. It is a considerly convinent method. However, the attributes we computed belong to the entire frequency band. The attribute of seismic signal varies with frequency. For the multiresolution character of wavelet transform, we can study the multiscale attribute of seismic data using the complex wavelet coefficients. Thus...

Seismic signal attribute analysis plays an important role in the interpretation of seismic data. Traditionally, we computed attribute of the complex trace in terms of the Hilbert transform. It is a considerly convinent method. However, the attributes we computed belong to the entire frequency band. The attribute of seismic signal varies with frequency. For the multiresolution character of wavelet transform, we can study the multiscale attribute of seismic data using the complex wavelet coefficients. Thus the imaginary part of wavelet coefficients is the Hilbert transform of the real part.

地震信号的瞬时属性分析对地震岩性解释和烃类检测很有帮助,通常采用希尔伯特变换的复数道分析方法。利用这种方法,可以比较方便地从地震记录中分离出波的瞬时振幅、瞬时频率、瞬时相位等参数。信号的不同频带具有不同的属性特征,而小波变换具有对信号进行多尺度分解的特性,如采用解析小波则分解后的小波系数仍为一解析信号,且其虚部是其实部的希尔伯特变换。因此根据这一特点可以研究地震信号在不同分辨率下的属性特征。

The instantaneous attribute analysis of seismic traces is usually achieved by using two methods, namely Hilbert transform in time domain and continuous wavelet transform. The operational efficiency and accuracy of above two methods are not satisfactory. The instantaneous attribute analysis method based on orthogonal basis of compact supported wavelets, which uses characteristic of orthogonal basis of Daubechies' compact supported wavelets, expresses both Hilbert operator and oneorder differential operator in...

The instantaneous attribute analysis of seismic traces is usually achieved by using two methods, namely Hilbert transform in time domain and continuous wavelet transform. The operational efficiency and accuracy of above two methods are not satisfactory. The instantaneous attribute analysis method based on orthogonal basis of compact supported wavelets, which uses characteristic of orthogonal basis of Daubechies' compact supported wavelets, expresses both Hilbert operator and oneorder differential operator in multi-resolution space, so that it analyses the instantaneous attributes of seismic traces in multi-resolution space. The new method has advantages of fast operation, high accuracy and good noise elimination. The advantages are fully proved by computation examples in this paper.

常见的地震道瞬时属性分析有两种方法:一是在时间域利用Hilbert变换来实现;二是利用连续小坡变换来实现。二者的运算效率和精度都不令人满意。本文介绍的基于紧支集正交小波基的瞬时属性分析,是利用Daubechies紧支集正交小波基的特性,它可以将Hilbert算子和一阶微分算子在多分辨空间中进行表示,从而可以进行多分辨分析空间中的地震道的瞬时属性分析。这种方法具有计算速度快、精度高、消除噪声效果好的优点。文中给出的计算实例充分地证明了这一点。

4-D seismic data interpretation can be regarded as adynamic interpretation process of oil reservoir descrip-tion. The interpretation methods can be divided intodirect analysis method, seismic attribution analysismethod and dynamic reservoir description method. Thispaper discusses mainly direct analysis method and seis-mic attribution technology. Direct analysis method in-cludes interlayer time differential analysis, amplitudeanalysis, velocity analysis and spectrum analysis. Thebasic feature is to use the single...

4-D seismic data interpretation can be regarded as adynamic interpretation process of oil reservoir descrip-tion. The interpretation methods can be divided intodirect analysis method, seismic attribution analysismethod and dynamic reservoir description method. Thispaper discusses mainly direct analysis method and seis-mic attribution technology. Direct analysis method in-cludes interlayer time differential analysis, amplitudeanalysis, velocity analysis and spectrum analysis. Thebasic feature is to use the single seismic attribution dif-ferential value for interpretation of 4-D seismic data.Seismic attribution analysis method includes selection,optimization, calibration and classification of seismicattribution features. Based on linear and non-linear opti-mization of the differential value of seismic instant attri-bution, interbed attribution and plane attribution, itmakes analysis of 4-D seismic dare and predicts the re-servoir features and the fluid property and its changes inthe reservoir, increasing the ability to monitor the oilreservoir.

四维地震资料解释可以看成是一个动态油藏描述过程,其解释方法可分成直接分析法、地震属性分析方法和动态储集层描述方法。文中着重讨论了直接分析法和地震属性技术。直接分析法包括层间时差分析法、振幅分析法、速度分析法和频谱分析法,其基本特点是利用单个地震属性差值对四维地震资料进行解释。地震属性技术分析包括地震属性特征的提取、优化、标定和聚类分析四个方面的内容,它根据地震瞬时属性、层间属性和平面属性的差值的线性或非线性的优化方法对四维地震资料进行分析,以预测储集层特征和储集层流体性质及其变化,增强对油藏的监测能力。

 
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