地震记录的

Thus we can make good use of this complex information to interpret field data well.

由此我们可以通过分析实际地震记录的复杂性特征来鉴别其自组织类型，从而更好地解释实际地震资料。

On the basis of the power spectra of earthquake records, the parameters of the power spectral density function of the twice filtered Gaussian white noise process are determined by adopting the least squares procedure of a nonlinear function.

根据地震记录的功率谱，采用非线性函数的最小二乘法，确定了两次过滤Gauss白噪声过程的功率谱密度函数的参数。

In chapter 4, the prime reasons for the ill-posed inversion are analyzed at first and then the remedy method is described. The basic formula of stochastic inversion method tor impedance with broarband constraint of well log is deduced from basic level.

第二章首先将信号分析中的MA过程的定阶问题引入到地震子波的提取中，发展了利用地震记录的高阶累积量矩阵的特征值的变化估计地震子波的有效长度的方法。

At last a brief introduction for the research history of WE and impedance inversion is given. In chapter 2, at first, the seismic deconvolution model is linked with the moving average process, the method for determination of wavelet length is developed which use the singular values of high-order cumulant matrix of seismic traces.

然后对最近发展起来的利用地震记录的高阶累积量的统计性子波估计方法进行了研究；紧接着，以确定性方法所得的子波作为约束条件，发展起来了一种利用高阶累积量的测井约束子波外推方法。

Generation mechanism of synthetic seismogram is given.

文中叙述了合成地震记录的生成机理，分析了误差因素，介绍了几种消除误差因素的方法。

According to seismic wave dynamic mechanics,the reasonable nonlinear mapping relationship between seismic records and log data was established.

摘要根据地震波动力学，建立了地震记录和测井数据间的合理的非线性映射关系，通过获取地震记录的自回归系数、分形维数、最大Lyapunov指数和突变参数，得到了声波时差和地层密度测井曲线，建立了地层弹性参数、强度参数的获取方法。

In seismic data processing, people generally deem that signal/noise ratio im-provement and resolution improvement are very contradictious each other.

引言在地球物理数据处理中，提高地震记录的信噪比及分辨率是两大主要手段。

Based on an investigation of petrophysical properties in saliniferous strata, we proposed to construct seismogram with density substitution in Dongpu depression.

在充分研究含盐地层不同岩性地球物理参数的基础上，针对东濮凹陷盐岩层，采取密度替代法进行合成地震记录的制作，在实际应用中取得了较好的效果。

Then based on CWMS, we propose a new method to enhance the resolution of seismic traces. Firstly, we divide the seismic signal into proper segments by Gabor molecule-windows adaptive to the signal, where each segment is regarded stationary, and then transform it into the Gabor domain. Secondly, we deal with the amplitude spectrum for each segment to expand the frequency band of the spectrum in the Gabor domain. Finally, taking inverse Gabor transform on modified time-frequency coefficients, we get the high-resolution signal.

然后基于变子波模型，提出了一种新的提高地震记录分辨率的方法：第一步，用自适应于地震记录的Gabor分子窗把地震记录恰当地划分成若干片断，每段内信号近似平稳，然后将地震记录变换到时间-频率域；第二步，在变换域对每个分子窗内信号的振幅谱进行处理以拓宽频带；最后把处理后的时间-频率域函数反变换回时间域得到提高分辨率后的结果。

In this paper,we present a method to enhance the signal/noise ratio of three-component seismic data by an adaptive polarization filter.To achieve this aim,the matrix of spectrum density is constructed,after the introduction of multi-taper method,to compute th...

本文在引入多窗谱分析方法的基础上，通过对谱密度矩阵特征问题的求解提取三分量地震记录的偏振参数，实现频率域偏振分析；根据所求得的偏振参数以及随机噪声和有效信号的偏振特性差异，设计相应的自适应滤波器，通过该滤波器的滤波作用，最终实现压制随机噪声的目的。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。