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- Keywords cutter chatting;wavelet package decomposition;SVR;trend prediction; 切削颤振;小波包分解;SVR;趋势预测;
- wavelet package decomposition 小波包分解
- Wavelet package is introduced in this paper to adjust for design earthquake accelerogram in different scales. 摘要提出了一种基于小波包对地震动在不同尺度上进行调整的方法。
- Wavelet package analysis can pick up the useful vibratile information of hydraulic generators, which is regarded as evidence to diagnose fault. 小波包分析能有效地提取水轮机振动信号中的有用成分,作为故障诊断的依据。
- Compared with applying the two methods separately, method combined wavelet package and ICA is more efficient to extract feature wave. 实验结果表明,对比于独立地应用某一种方法,两种方法相结合更能有效地提取脑电信号特征波。
- Combine wavelet package wint BP neural network to classify the fabrics for texture image. The result shows its total classification rate can reach 98%. 采用小波包和BP神经网络相结合的方法对织物纹理进行分类,实验表明,分类率可达98%25。
- A wavelet package denoising method based on wavelet transform modulus maxima(WTMM) multiscale edge detection is proposed. 文章提出一种将小波变换模极大值(WTMM)多尺度边缘检测与小波包去噪算法结合起来的图像去噪方法。
- In this paper is discussed how to use the method of wavelet package transform to denoise the electromyographic signal on the basis of its feature and its relationship with noise. 我们针对肌电信号的特点以及与噪声的关系,采用小波包变换的方法进行去噪研究。
- The eigenvector of the vibrating signal is rebuild by technology of wavelet package,It is valuable and effective to detect the ride quality of locomotive bogie. 提出利用小波包技术构造机车振动信息的特征向量,对检测机车的走行品质有一定的应用价值和现实意义。
- With the help of wavelet package the original EEG signals are firstly decomposed and then recomposed at the related frequency range.Analyze the power spectrum and energe after that. 首先对脑电信号进行小波包分解,然后进行相关频段信号的重构,从而提取出特征波,并对其进行功率谱分析和能量计算。
- A new hybrid method for prediction of solids holdup in gas-solid circulating fluidized bed is proposed based on chaos phase reconstruction and wavelet package as well as neural networks. 提出了一种将混沌的相空间重构、小波包分析和神经网络相结合的新方法用于预测气-固循环流化床的颗粒浓度。
- It is shown that better de-noising effect are achieved by using the wavelet package soft threshold method.These methods have a significant foreground in de-noising of passive sonar. 该研究在分析对比的基础上进行小波包软阈值去噪取得了较好的效果,对被动声纳降噪提供了较好的应用前景。
- In this paper,we use wavelet package to de-noising ultrasonic inspection signal of this kind of defect.The result showed that noises were depressed well,SNR is improved obviously by using the m... 本文采用小波包对该类缺陷超声检测信号进行消噪,结果表明,该方法不仅能有效抑制噪声,而且能明显提高信噪比。
- wavelet package time-frequency analysis 小波包时频分析
- wavelet package transfor-mation (WPT) 小波包变换(WPT)
- the decompounding of wavelet package 波包分解
- The gay package is only for dandy. 这种鲜艳的包装只是为了美观。
- The goods are to be sent in airtight package. 这批货物应密封包装运送。
- lifting wavelet package transform 提升小波包变换
- My aunt is hooked on package holidays in Spain. 我的姑母着迷于旅行社包办的西班牙度假。