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勘探信号
相关语句
  exploration signals
     Prediction coding of acoustic exploration signals
     声波勘探信号的预测编码
短句来源
  ic signal
     The analysis results of real data showed in the pap er indicated the application meaning of time frequency analysis method in seism ic signal analysis and processing: using short frequency time transform — a go od analysis tool can make us a clear knowledge of time frequency structure of d ata and energy distribution, thus providing a basis for further selecting a reas onable data processing plan.
     文中展示的实际数据分析结果表明了时频分析方法在地震勘探信号分析与处理中的应用意义,即利用短频时间变换这一有效的分析工具,可使我们对数据的时频结构和能量分布有清晰的认识,为进一步选择合理的数据处理方案提供依据。
短句来源
  “勘探信号”译为未确定词的双语例句
     Application of discrete wavelet transformation for time-delay estimate in vibroseis exploration
     离散小波变换在可控震源地震勘探信号时延估计中的应用
短句来源
     With compare to the fast Fourier transform (FFT) method, the results of simulated experiments show that, wavelet transform can eliminate the noise of seismic signal efficiently, and the results show that quadric wavelet transform has good effect on improving the seismic signal denoising.
     与常用的快速傅立叶转换方法比较,仿真结果表明,该小波变换方法能够有效去除地震勘探信号中的噪声,并且针对系数的二次小波变换可以明显改进去噪的效果。
短句来源
     This paper emphatically studied the noisereduction technology in the seismic survey signal, with which the wavelet transformation and theK-L transformation technology are combined.
     本论文着重研究地震勘探信号的降噪技术,研究中结合了小波变换和K-L变换技术。
短句来源
     It is obvious that this method plays a significance role for the processing ofseismic exploration signal.
     promax等,缺少对原始数据炮点校正的模块,所以本文给出的炮点校正方法对于地震勘探信号的精确处理具有明显的意义。
短句来源
     Stratigraphic absorption compensation based on short-time Fourier transform has been developed by analysing the time-frequency distribution characteristics of seismic reflection signals.
     本文在分析地震反射波勘探信号时频分布特性的基础上提出了基于短时傅里叶变换的地层吸收补偿方法。
短句来源
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  相似匹配句对
     Prediction coding of acoustic exploration signals
     声波勘探信号的预测编码
短句来源
     TB (Time Break) signal in seismic exploration.
     地震勘探中的爆炸信号
短句来源
     Signal transduction of ataxia-telangiectasia
     AT的信号传导
短句来源
     New method to realize remote signal measure
     信号遥测方法
短句来源
     Exploratory right
     勘探
短句来源
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  ic signal
A reduced or negative IC signal indicates specimen interference and/or problems with assay execution or reagents.
      
The DCM method eliminates these variables by measuring the spectral response of an IC signal directly from the IC output pin.
      
The IC signal in each reaction was discriminated from the HBV signal by the differential kinetics of light emission.
      


Recently, in seismic signal processing, problems of identification of phase characteristics for non-minimum phase system and processing of non-Gaussian distributed random signal have been posed. Some research results have shown that it is advantageous to use nonmean square criterion in stead of the traditional LS method. But this often leads to solving some non-linear equations, which needs tedious computation. A new family of steepest descent algorithm for adaptive processing has been proposed in this paper....

Recently, in seismic signal processing, problems of identification of phase characteristics for non-minimum phase system and processing of non-Gaussian distributed random signal have been posed. Some research results have shown that it is advantageous to use nonmean square criterion in stead of the traditional LS method. But this often leads to solving some non-linear equations, which needs tedious computation. A new family of steepest descent algorithm for adaptive processing has been proposed in this paper. It is a generalization of the traditional LMS algorithm and allows error minimization in arbitrary norm. Convergence by means of (?)his new algorithm has been derived, and experimental results also given.

在某些实际问题中,如地震勘探信号处理等,对于非最小相位系统相位特性辨识,及非正态分布随机信号的处理问题,用非二次范数为准则可以得到比传统的最小二乘法更好的结果,但这常导致解一组非线性方程使计算复杂.本文提出一种新的最陡梯度下降自适应算法,它是LMS法的推广,计算简单,可以误差的任意次范数为目标函数.文章证明了算法的收敛性及其收敛结果,并给出了实验结果.

Wavelet Transformation (WT) is a newly developed time-frequency domain analysis method, it has multiresolution time-frequency character Using WT to analysis seismic exploration signal and well-logging signal which are nonstationary, their time-frequency information of signals can be used fully This paper describes the basic concept of WT and its applications in time-varying filtering of seismic exploration signal and full waveform acoustic logs signal seperation The results of practical applications show that...

Wavelet Transformation (WT) is a newly developed time-frequency domain analysis method, it has multiresolution time-frequency character Using WT to analysis seismic exploration signal and well-logging signal which are nonstationary, their time-frequency information of signals can be used fully This paper describes the basic concept of WT and its applications in time-varying filtering of seismic exploration signal and full waveform acoustic logs signal seperation The results of practical applications show that it is a promising method to apply WT in geophysical signal processing.

利用小波变换具有的多时频分辨率特性,对地震勘探和测井信号这类非平稳信号进行分析,可以充分利用信号的时间一频率特性。文中介绍了小波变换的基本概念及其在地震勘探信号的时变滤波和声波全波列测井信号的信号分离中的应用,实例表明,小波变换在地球物理信号处理中具有广阔的应用前景。图5参7

Signal feature analysis is important in pattern recognition.The method ofwavelet analysis is used to sonic logging and seismic exploration. A signal was decomposedinto a series of vectors.The signal outstanding features were expressed at differentfrequences. This method gives a practical bases for ultrasonic signal processing and seismicwaves analysis. Academic and experimental examples are given.

信号特征分析是地球物理勘探中模式识别的关键。小波分析方法对局部信号进行分析优于付氏变换。将该方法用于声波测井和地震勘探的信号分解,在一系列频段上重新表示信号,突出其重要特征,从而为超声信号和地震信号特征分析提供一种实用方法。文中给出理论分析和分析实例。

 
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