1)wavelet variance小波方差
1.The wavelet variance under the single scale is discussed,and in combining the information entropy in information theory with physical sense,the wavelet entropy under the multi-scale is introduced in this paper.讨论了单一尺度下的小波方差,并结合信息论中信息熵的定义和物理意义,进一步引进了多尺度下的小波熵;分别以频率突变和幅度突变两种仿真信号为对象,分析了小波方差与小波熵在反映随机信号统计特征方面的特点;最后,以一类钻井信号为例,分别利用两种方法分析和提取了信号在强噪声环境下的脉冲特征。
2.According to the properties of bias drift of optic gyro, the wavelet transform is used to study the wavelet variance of random process.根据光学陀螺信号零漂移的频率特性,提出了利用小波变换所具有的时频局部化的优点对其随机过程进行小波方差分析。
3.A long memory analysis method based on wavelet variance for time series was proposed.提出了基于小波方差的时间序列长记忆性分析方法,用该方法对汇率波动序列进行了分析,得到了长记忆参数的精确值。
英文短句/例句
1.Modified BS Model(MBS) Based on Using Wavelet Variance to Approach Real Volatility of Financial Process利用小波方差逼近数据波动率的改进BS模型(MBS)
2.Bearings fault diagnosis based on wavelet variance spectrum entropy基于小波方差谱熵的轴承故障诊断方法
3.Analysis on the Periodic Characteristic of Rainfall and Runoff in Yihe River Basin by the Wavelet Square Deviation小波方差分析伊河流域降雨径流周期特征
4.The Estimation of Atomic Clock's Frequency Stability by Wavelet Variance利用小波方差进行原子钟频率稳定度的估计
5.Technique and Test of Error Variance Modeling of GPS's Reducing Noise Using Wavelet TransformGPS小波去噪的误差方差建模技术与试验
6.Testing Heteroscedasticity by Wavelets in a Nonparametric Autoregressive Model非参数自回归模型异方差的小波检验
7.Forecasting for non-stationary errors of ship-measured data based on wavelet船测数据非平稳误差的小波预测方法
8.Mean Square Error Approximation for Wavelet-Based Semiregular Mesh Compression;基于小波半规则网格压缩均方误差的近似方法
9.Image Fusion Algorithm Based on Directional Spread of Wavelet Coefficients' Differences小波系数差值方向传播的图像融合新方法
10.An Image Fusion Method Based on High Frequency Variance Contrast Processing of Wavelet Coefficient基于高频方差对比度小波变换的图像融合方法
11.Robust Adaptive Beamforming Based On Minimizing Mean-Square Error基于最小化均方误差的鲁棒自适应波束形成
12.One-step-ahead minimal prediction error control for earthquake waveform replication地震波时域再现一步超前最小预测方差控制
13.Application of Wavelet Coefficient and its Variance in Detection Speech基于小波系数能量及其方差的语音端点检测
14.Wavelet Method for Soft Fault Diagnosis of Tolerance Analog Circuit容差模拟电路的软故障诊断的小波方法
15.Kalman Filter Applied Algorithm Based on Mean Square Error Minimum基于均方误差最小的卡尔曼滤波实用算法
16.Noise variance estimation based on inter-scale correlation of image coefficient of wavelet transform基于小波系数层间相关性的图像噪声方差估计
17.Non-local Means Image Denoising in Wavelet Domain with Unknown Noise Variance噪声方差未知的小波域中非局部均值图像去噪
18.Empirical Analysis Of China's Stock Market Serial Correlation Of Volatility Based On Wavelet Covariance基于小波协方差的中国股市波动序列相关性的实证分析
相关短句/例句
wavelet variance diagram小波方差图
3)wavelet covariance小波协方差
1.A long memory analysis method based on wavelet variance and a correlation analysis method based on wavelet covariance for financial volatilities are proposed.提出了一种基于小波方差的金融波动的长记忆分析方法,以及基于小波协方差的不同市场金融波动相关性的分析方法,用该方法对上海和深圳证券市场综合指数收益波动序列进行了分析,结果表明该方法是有效和可行的。
4)wavelet variance spectrum小波方差谱
1.Bearings fault diagnosis based on wavelet variance spectrum entropy基于小波方差谱熵的轴承故障诊断方法
5)least mean square filter(LMS)最小均方差滤波
6)minimum variance filtering最小方差滤波
1.This paper studies the robust minimum variance filtering problem for linear continuous-timesystems that are subjected to norm-bounded parameter uncertainty and impinged by unmodelled external disturbances.本文研究了含有范数有界参数不确定的性连续系统在未建模外部于扰信号作用时的鲁棒最小方差滤波问题。
延伸阅读
阿波波地狱【阿波波地狱】 梵语阿波波,或云唬唬婆(无翻),谓受罪众生,寒苦增极,舌不能动,唯于唇间作此声也。