查询词典 wavelet

A data compressing/decompressing system based on wavelet transform is presented in this paper.

介绍了一种基于小波变换的数据压缩/解压系统。

In the second scheme, hybrid error concealment based on both space and wavelet domain is put forward.

在此基础上，进一步提出了小波-空间域联合估计的差错隐藏算法。

According to the characteritie of EHV transmission lines fault concomitance with arc, a new protection principle and criterion based on wavelet analysis is first proposed and established, which is able to distinguish fault in-area and out-area.

应用EMTDC对一实际EHV线路的简化模型作了大量的仿真分析，表明该保护原理的正确性以及判据的有效性、可实现性。

Secondly, it is proved that the "folded"orthonormal wavelet basis satisfies the boundary condition of the equation.

其次， 证明Littlewood-paley 折叠小波基满足该微分方程的边值条件。

Bring forward idea of conformal transformation of wavelet analysis, put up reference frame of t...

提出小波变换的保角特征概念，为小波在VLBI观测技术中的应用提供理论依据和研究方向。

Bring forward idea of conformal transformation of wavelet analysis, put up reference frame of theory and researching way.

提出小波变换的保角特征概念，为小波在VLBI观测技术中的应用提供理论依据和研究方向。

After a power spectrum is constructed, empirical wavelet coefficients are used to detect the jump points in the function to obtain the strong consistent estimator of the position and number of the frequencies. Numerical simulations show this method is reliable.

根据它们的协方差函数可以表示为一个Fourier级数，而其Fourier系数可通过协方差函数的逆变换得到的特性，我们对于零均值的近周期相关序列构造了类似于周期图的函数，并构造其经验小波系数，利用频率处于此函数的尖点的特性，以及此性质在经验小波系数中的反映，来确定频率的个数和位置，所有的估计量都是强相合的，此外，数值模拟的结果表明，我们的方法是有效的。

The results of in-situ test are in good agreement with numerical simulation and it show that this method can successfully be applied to the identification and diagnosis of structural damage with the consummately trained wavelet neural network as an intelligentzed classifier.

仿真模拟试验显示了该方法的合理性，结果表明训练成功的神经网络可以作为智能分类器对框架结构损伤进行有效的识别和诊断。

This research aims to improve the accuracy of power spectrum estimation of magnetotelluric signal by using continuous wavelet transform.

在基於连续小波变换的大地电磁信号谱估计方法中，通过引入整体平均、小波系数收缩和显著性检验等统计技术，以提高谱估计的精度。

Aiming at this problem, this paper utilizes multi-scale continuous wavelet to pre-filtering the signal of voice.

针对现有语音基音检测算法抗噪能力低的问题，利用多尺度连续小波对语音信号进行预处理。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。