A new approach for extracting seismic wavelet is presented in this paper.
本文提出一种新的子波提取方法。
The maximum positive or upward deflection, also known as the crest, of the seismic wavelet.
地震子波正向的最大偏离,也叫做峰值。
The extract of seismic wavelet is the base of wave impedance inversion and forward modeling.
地震子波的提取是波阻抗反演及正演模拟的基础。
In this paper we proposed a new method for seismic wavelet estimation based on the genetic algorithms.
本文基于遗传算法提出了一个新的地震子波估计方法。
This paper presents a method for estimating seismic wavelet from seismic record by homomorphic theory.
本文讨论的是用同态理论从地震记录中估算地震子波的方法。
Seismic wavelet extraction and stratum acoustic impedance inversion are very important in seismic inversion.
地震子波的提取和地层波阻抗反演是地震反演中非常重要的两个方面。
Deconvolution is a principal technique to compress seismic wavelet for the enhancement of vertical resolution.
反褶积是通过压缩地震子波以提高地震数据纵向(时间)分辨率的过程。
Therefore, the resulting seismic wavelet is more reasonable, which provide a solid foundation for constrained …
应用实例证明,此方法是解决子波空变问题的一个好办法。
Comparing with current method, it has high stability, good precision and can be use to estimate non minimum seismic wavelet.
与其它方法相比,本文提出的方法具有高度稳定性和很好的精度,并适应于估计非最小相位地震子波。
The novel method of Estimation and extraction of seismic Wavelet-Higher order cumulants is presented in this thesis at first.
本文首先引出地震子波估计和外推的最新方法—高阶累积量法。
The method of the robustness seismic wavelet estimation using the maximum likelihood deconvolution are discussed in the paper.
利用极大似然反褶积提取鲁棒性地震子波的方法进行了研究,并讨论了极大似然反褶积的稳健性。
Recently, the statistical methods of seismic wavelet estimation achieved comprehensive application in real seismic data processing.
近年来,统计地震性子波估计技术在实际地震数据处理中得到了广泛应用。
We use ARMA model to describe the seismic wavelet, and use genetic algorithms to estimate the ar parameters and the ma parameters iteratively.
该方法用ARMA模型描述地震子波,用遗传算法交替迭代地估计AR和MA参数。
This paper studies a statistical seismic wavelet estimation method, which based on higher order statistics and the hybrid ant colony algorithm.
本文重点研究了统计性方法中,基于高阶统计量及混合蚁群算法的地震子波估计方法。
The model test results of seismic wavelet estimation show that the method is more efficient than that only use stochastic optimization algorithm.
通过对地震记录子波估计的理论模型试验,结果表明这种混沌的优化算法比单一的随机优化方法具有很好的实际效果和应用前景。
According to the theory of discrete inversion, an accurate method of seismic wavelet extraction was proposed by using well log data and seismic data.
根据离散反演理论,综合测井和地震资料,充分考虑了地震子波的振幅特点和相位特点,给出了精确计算井旁地震子波的方法。
Theoretic calculation show that wavelet can be reconstruct from double spectrum of theoretical seismic data for seismic wavelet with different characters.
理论计算表明,对不同性质的地震子波,均可从理论地震记录的双谱中重构子波。
In the oil and gas exploration field, high-resolution seismic wavelet extraction technology is the important research project, which is urgent to be solved.
高分辨率地震子波提取技术是油气地震勘探领域高分辨率处理技术亟待解决的重要研究课题。
This paper proposes the higher order statistics method by which the seismic wavelet taken is more similar to the real seismic wavelet taken by the conventional method.
提出的用高阶统计量法求取的地震子波,比用常规方法提取的子波更接近真实的地震子波。
By replacing the basic wavelet in the ST with actual seismic wavelet which was extracted from seismic data, the general s transform (GST) was achieved in the seismic data analysis.
将从地震资料中提取的地震子波代替S变换中的基本小波,实现了应用在地震资料中的广义s变换。
The maximum entropy deconvolution is performed under the premise that seismic wavelet is of minimum phase, so the forward prediction error is equivalent to reflection coefficient series.
最大熵反褶积是在地震子波为最小相位条件下进行的,其向前预测误差就等于反射系数序列。
The modeling formula based on seismic wavelet can well simulate zero-ph ase wavelet and hybrid-phase wavelet, and also approximate maximal-phase and minimal-phase wavelet in a certain sense.
基于地震子波的模拟公式,可以很好地模拟零相位和混合相位子波,在一定意义上也可以近似模拟最大相位及最小相位子波。
The main parameters that effect horizontal resolution of migration imaging were identified as medium velocity, dominant frequency of seismic wavelet and aperture Angle of migration processing.
结果表明,影响偏移成像水平分辨率的主要参数是介质速度、地震子波主频和偏移处理的孔径角。
The estimation of the seismic wavelet has a very important significance for improving the resolution and signal-to-noise of seismic data, and it is a long-term research in seismic data processing.
地震子波估计对于提高地震资料数据的分辨率、信噪比有着极为重要的意义,是国内外地震信号处理中长期研究的重要课题。
In the premise of ensuring the accuracy of seismic wavelet, reduced the model order as much as possible so as to obtain high-efficiency and high-precision seismic wavelet model order determination.
在保证子波精度的前提下尽可能地降低模型阶数,提高运算效率,最终实现高效率高精度的子波模型定阶。
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.
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。
During the processing of seismic data interpretation of Tahe Oilfield, pseudomorphism of adjoint phase caused by non zero phase wavelet was easily interpreted as effective reflection.
在塔河油田联片地震资料解释过程中,地震子波非零相位化造成的“伴随相位”假象很容易被当成有效反射加以解释。
The actual non zero phase wavelet was extracted from seismic traces by comparing synthetic seismogram with near wellbore seismic traces and was used to be deconvolved with seismic data.
通过合成地震记录与井旁地震道的对比,从地震道中提取了非零相位的实际地震子波,并据此对原地震数据体进行子波反褶积处理。
Here we used Wavelet and spectral analysis to different kind seismic waves in volcanic area, in order to pick up their spectral character and determine the type of these earthquakes.
本文对火山区不同种类的地震波形运用小波分析和频谱分析的方法,希望能提取不同类型火山地震的一些频谱特征,确定火山地震的类型。
Here we used Wavelet and spectral analysis to different kind seismic waves in volcanic area, in order to pick up their spectral character and determine the type of these earthquakes.
本文对火山区不同种类的地震波形运用小波分析和频谱分析的方法,希望能提取不同类型火山地震的一些频谱特征,确定火山地震的类型。
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