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filter factors
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  滤波因子
     Convolution filter is a method commonly used in seismic data processing. Because of the vast amount of seismic data and the long convolution filter factors, some difficulties might be brought up as the convolution calculation is carrying out in time domain.
     褶积滤波是地震资料处理中的常用方法,但由于地震数据的数量一般较大,而褶积滤波因子通常又较长,这就给在时间域进行褶积运算带来一定的困难。
短句来源
     Also, three filter factors in the phasor deconvolution algorithm have been designed by using the least Square technique based on the geometrical factor theory.
     基于几何因子理论用最小平方滤波法设计出了相量反褶积中的三个滤波因子
短句来源
     To eliminate the Gibbs phenomenon in digital filters, synthetic method of both improved window functions and changed truncation length of filter factors is studied.
     针对数字滤波器中存在的Gibbs现象 ,研究了改进窗函数与改变滤波因子截断长度综合法。
短句来源
     An adaptive FIR filter is designed to satisfy the application requirements of inertia measurement. The filter can adaptively modify filter factors according to grads information of signal; thereby this filter has adaptive noise suppressing function.
     从惯性测量的应用需求出发,设计了一种基于梯度信息的自适应FIR Finite Impulse (Response)滤波器,这种自适应滤波器依照信号的梯度信息自动修正滤波器的滤波因子,从而具备自适应消噪功能。
短句来源
     Smoothing filter factors are introduced respectively in downward continuation and derivative computation of potential field, these factors can restrain the amplification effect on noise and increase the stability of calculation.
     在波数域向下延拓和导数计算的滤波算子中,分别引入圆滑滤波因子,抑制了向下延拓计算中对噪声干扰的放大作用,增加了计算的稳定性;
短句来源
  “filter factors”译为未确定词的双语例句
     Six kinds of polymer solution are made up respectively using fresh water,produced water 1 and 2,with SNF(French )and 1275A(British) polymer,and their filter factors are measured by experiments.
     分别使用清水、产出水1和产出水2与SNF(法国)和1275A(英国)两种分子量聚合物配制了6种聚合物溶液,并通过实验测量其过滤因子。
短句来源
     UNIFORM CONVERGENCE AND MEAN SQUARE CONVERGENCE OF FILTER FACTORS
     滤波因子的均匀收敛和均方收敛性质
短句来源
     This essay introduces the working principle of ceramic filter,factors that affect the production capacity of ceramic filter and the best way to improve the production capacity of ceramic filter.
     介绍了陶瓷过滤机的工作原理、影响陶瓷过滤机产能的因素以及提高陶瓷过滤机产能的最佳方法。
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  filter factors
Specifically, it is shown that, for ill-posed problems, steepest descent has a more stable convergence behavior than CG, which may be explained by the fact that the filter factors for steepest descent behave much less erratically than those for CG.
      


With regard to various digital filters in seismic digital processing, the crux of the matter concerned e.g."The Optimum Filter Calculation System of Horizontal Stacking" is discussed in this paper. Apart from this, the role it plays in the data processing is expounded, the calculation procedure of filter factor of the system is also briefly introduced so as to make this calculation system understandable more easily. As to the calculation of the power spectrum, the maximum entropy spectrum method...

With regard to various digital filters in seismic digital processing, the crux of the matter concerned e.g."The Optimum Filter Calculation System of Horizontal Stacking" is discussed in this paper. Apart from this, the role it plays in the data processing is expounded, the calculation procedure of filter factor of the system is also briefly introduced so as to make this calculation system understandable more easily. As to the calculation of the power spectrum, the maximum entropy spectrum method is adopted for the sole purpose of improving the resolu-tion of low frequency,

本文就地震数字处理中的各种数字滤波提出了“水平迭加最佳滤波计算系统”的问题,阐述了该系统对改进资料处理的作用,扼要地引述了这个系统的滤波因子的计算过程,以便了解该计算系统,对这个系统中的功率谱的计算采用了最大熵谱法,可提高低频部分的分辨力。

Convolution filter is a method commonly used in seismic data processing. Because of the vast amount of seismic data and the long convolution filter factors, some difficulties might be brought up as the convolution calculation is carrying out in time domain. Right after the appearence of the Fast Fourier Transformation (FFT) , was the convolution calculation run from time domain to frequency domain. This is the so called"Fast Convolution Filter". The way of doing the calculation is, to speak in concrete...

Convolution filter is a method commonly used in seismic data processing. Because of the vast amount of seismic data and the long convolution filter factors, some difficulties might be brought up as the convolution calculation is carrying out in time domain. Right after the appearence of the Fast Fourier Transformation (FFT) , was the convolution calculation run from time domain to frequency domain. This is the so called"Fast Convolution Filter". The way of doing the calculation is, to speak in concrete terms, to carry out the FFT for the seismic data x(t) and the filter factor h(t) respectively for the purpose of changing them into the seismic frequency spectrum X(f) and the frequency spectrum of filter factor H(f), to multiply X(f) by H(f), then, carrying out the inverse transformation of FFT for the product, the convolution calculation thus accomplished.

褶积滤波是地震资料处理中的常用方法,但由于地震数据的数量一般较大,而褶积滤波因子通常又较长,这就给在时间域进行褶积运算带来一定的困难。快速傅立叶变换(FFT)出现之后,人们就把褶积运算从时间域搬到频率域进行,这就是所谓的“快速褶积滤波”(快速相关亦然)。在这个运算过程中所进行的正向和反向傅立叶变换,实质上是一系列包括三角函数在内的复数运算。由于复数运算比实数运算复杂,又需要存放三角函数的地方,并存在舍入误差等不足。因此,近年来在国外和国内一些部门,针对FFT存在的不足之处,开展了所谓“数论变换”的研究,取得了一定的成效。 本文首先简要地介绍一下“数论变换”,然后用数论变换方法,对地震数据进行快速褶积滤波作初步的探索,最后对结果提出了一些看法。

Convolution method is a filtering method used to extract fault information from observed gravity field by adopting known theoretical wavelet. The second derivative curve of the gravity field can be used as filtering factor so as to improve resolution. 12 faults and 4 fault blocks in LS area were ascertained by processing detailed gravity survey data of 1000 Km~2 with this method. Compared with drilling and seismic data, this result only has the fault location deviation of 1-2 Kin.

褶积法是用已知理论子波从重力观测场中提取断层信息的一种滤波方法。为了提高分辨率,可采用重力场的二次导数曲线作滤波因子。用这种方法对LS地区1000平方公里的重力资料进行试算,从中找出12条断层,划分出四个断块。这个结果与地震资料相比,只是断层位置偏差1—2公里。

 
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