查询词典 spectral

Based of improved continuous wavelet transform, applying it to time variant filter and spectral decomposition of seismic data, getting a better result.

基于改进的连续小波变换方法，将其应用到时变滤波和地震信号的谱分解中，取得了较好的效果。

It could be concluded that spectral decomposition can reveal geological structures of different size, It is an effective tool for depositional environment and reservoir study.

研究和分析表明：分频解释可以在不同的频带上显示不同级别的地质现象，是地震资料研究沉积环境和储层的有效手段；时频分析是实现地震分频解释的重要手段。

The major merit of LU decomposition with spectral factorization is its efficiency in dealing with a large number of matrixes.

但是，谱法LU分解忽略了矩阵分解中列与列之间联系，带来的误差是不容忽视的。

Under Etropy loss, this new estimate of the covariance matrix is its spectral decomposition estimate.

同时，我们证得：在一些模型中，在Etropy损失下，新估计的风险函数比其谱分解估计，ANOVAE和MINQUE的风险函数小。

Thereinto, for the spectral decomposition estimate of the covariance matrix ,we can gain the risk functions under some losses.

其中，对于观测向量协方差阵的谱分解估计，我们很容易得到它在一些损失下的风险函数。

Keywords: Mixed effects model; Variance components; Spectral decomposition.

中文关键词：混合效应模型；方差分量；谱分解

Spectral decomposition technique can depict the frequency characters of seismic reflection that are caused by carbonate reservoirs.

分频解释技术可以刻画碳酸盐岩储层中缝洞发育所引起的地震反射频率特征。

So using thin bed spectral decomposition technology for identification and forecasting of Tahe carbonate reservoir.

为此，采用薄层谱分解技术对塔河地区碳酸盐岩储层进行了识别和预测。

Its decomposition errors is 10 times little than that of spectral factorization, and its decomposition speed is quite faster than that of direct elimination, especially in dealing with a large number of matrix.

混合方法与谱法相比，在非均匀介质中的矩阵分解时提高精度近10倍；在计算速度方面，混合方法也远比直解法快，特别在处理大量矩阵分解的时候，这一优势更明显。

The nuclear of the method is the newly developed HHT for nonstationary and nonlinear time series analysis, which consists of the Empirical Mode Decomposition and Hilbert Spectral Analysis.

该方法对桥梁结构健康性的最终判断依据是基于数据的非线性特征、自由振动和强迫振动的频率对比、桥梁对轻荷载及重荷载的响应。

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％。