地震信号是以二进制编码的数字形式储存的。
但大象们真的通过脚接收了远端的地震信号吗？
But are the elephants really picking up distant seismic calls through their feet?
结果表明，用此方法对地震信号进行识别分类是十分有效的。
The result shows that the method is available and effective.
野外采集的地震信号是多种波的复合体，是一种时变的非平稳信号。
The seismic signal acquired in the field is a complex of different waves and a time variant non stationary signal.
该方法的关键是依据高阶统计量原理，分析地震信号的高阶统计量特征。
The key of the method is to analyze the feature of high order statistic of seismic signal based on high order statistic.
联合时频分析是地震信号处理的一种重要分析工具，方法很多，应用广泛。
Joint time-frequency analysis is an important tool in seismic signal processing. With various realizations, this method is widely used in seismic prospecting.
用DFS-v地震仪辅助道记录折射地震信号的方法在国内尚属首次采用。
The method of recording refractive seismic signals by an auxiliary channel of the DFS- V seismic system is adopted for the first time at home.
井间地震信号的主频通常是地面地震的数倍甚至更高，可以达到几百赫兹。
Cross Well seismic signal frequency is usually several times of the surface seismic or more, can reach hundreds of Hertz.
首先从理论上探讨了广角地震信号存在的条件以及在应用过程中所面临的问题。
At first, the condition under which the wide Angle seismic signal exists and the problems which are faced on in application have been theoretically discussed.
研究了多道地震信号的最佳估计以及因之而提出的反射波时距曲线段的拟合问题；
The optimal estimate problem of multichannel seismic signals is investigated, and then the fitting of reflection travel-time distance relationship segment is applied and discussed.
地表一致性技术的使用，改善了地震信号能量的横向一致性，提高了剖面的保真度。
By the technique of surface consistent we can improve the landscape orientation's coherence of seismic signal energy and enhance fidelity of section.
首先对原始地震信号进行频谱分析，然后按其幅度谱对频率参数进行非均匀离散化。
Firstly, seismic signal is spectrum analyzed. After that, when the over-complete dictionary of atoms is being created, the selection of the frequency parameters refers to the spectrum analysis.
本文从信号高阶累积量的角度出发给出了一种基于地震信号双谱的高分辨率处理方法。
The paper gave a high resolution processing method based on double spectrum of seismic signal from Angle of higher order accumulated amount of signal.
当地震信号通过复杂地球介质时，地层除了表现为各向异性，还表现为内在的粘弹性特征。
When a seismic signal propagates through a realistic medium in the Earth, in addition to anisotropy, the layers may show intrinsic viscoelastic behavior.
利用相干体的时间切片来分析相邻道地震信号的相似性，进而探测小断层和分析地质构造。
Using time slice, we can explore small fault and analyse the geological structure by analysing the similarity of seismic signal between adjacent trace on the seismic cube.
我们在能量谱快速计算的基础上，研制成功了用于数字化加速度仪的自动地震信号检波器。
An automatic seismic signal detector based on a fast algorithm of energy spectrum has been developed for digital accelerograph.
经过模型计算、精度分析及地震信号处理中的若干运用，表明了该方法的有效性及可靠性。
From the results of model processing, precision analysis and seismic signal processing, it can be concluded that this algorithm is effective and dependable on seismic signal processing.
针对地震信号随机干扰的特点，运用二维小波变换的理论，设计了相应的变换域去噪滤波器。
A filter is designed to attenuating noise in accordance with the characteristics of seismic signals having a random disturbance with the theory of the 2-d wavelet transform.
利用这种信号的分解与重构算法在南芬露天矿爆破地震信号噪声处理中，取得较好去噪效果。
This signal decomposition and rebuilding algorithm was used in processing the blast - caused seismic signal noise of Nanfen Iron Open - pit Mine, which achieved good noise subtracting effect.
由于微地震事件的频率高，持续时间短，能量小，随机噪声甚至可以淹没有用的微地震信号。
Microseismic events are characterized by high frequency, short duration, and weak energy. They may even be smeared by random noises.
二元树CWPT由我们的结果所示，是一种非常有效的方法，在分析的地震信号与非线性相位。
As shown by our results, the dual-tree CWPT is a very effective method in analyzing seismic signals with non-linear phase.
地震信号和随机噪声具有不同的极化特性，可以利用极化分析的方法压制地震记录上的随机噪声。
Due to the fact that the polarization characteristics of seismic signals and random noises are different, polarization analysis can he used to attenuate random noises on seismic records.
地震信号在频率域和时间域表现出不同的特征，利用频率域的地震信号，可以更好地进行储层预测。
The features of seismic signals are different between time and frequency domains. We can make reservoir prediction better with seismic signals in frequency domain.
为了提高地震信号的稀疏分解速度，国内外学者已经提出了一些快速算法，蚁群算法就是其中的一种。
In order to improve the speed of sparse decomposition of seismic signal, scholars have proposed some fast algorithm, and the Ant Colony algorithm is one of them.
理论和计算结果表明，该方法能够检测出不同尺度下的地震信号突变特征，且具有一定的抑制噪声能力。
Theory and calculation results show that the method can detect the information of sudden change in different scale seismic signals and reduce noise effectively.
本文主要提出两种消除数字地震信号中长周期随机干扰的方法：窄带低通滤波对消法和自适应高通滤波法。
Two methods with which the long disturbance is removed from the digital are introduced: narrow band low - pass filtering canceling method and adaptive high - pass filtering method.
本课题从分析深层地震信号的特点入手，对深层 地震 资料的处理方法开展了一系列的 研究工作。
This topic starts with analyzing the features of deep seismic signals, and a series of research on the processing of deep were developed.
在地震信号和建筑结构系统的范数分析基础上，使用了混合控制优化指标J作为优化目标，并给出其物理含义。
Base on the norm analysis of seismic signals and the structural system, the mixed optimal control index J is cited; and its physical implication is defined.
可控震源输入到大地的信号是己知的，频谱可以人为地改变，因而有可能从激发地震信号方面来改善资料品质。
Vibroseis gives the earth controllable signal train whose frequency spectra can be artificially changed, therefore data quality can be improved by controlling the signal excitation of vibroseis.
可控震源输入到大地的信号是己知的，频谱可以人为地改变，因而有可能从激发地震信号方面来改善资料品质。
Vibroseis gives the earth controllable signal train whose frequency spectra can be artificially changed, therefore data quality can be improved by controlling the signal excitation of vibroseis.
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