搜索资源列表
87
- 小波分析可同时从时域和频域两个方面对信号进行分析，结合包络分析十分适合滚动轴承的故障特征提取；基于双通道的全矢小波分析方法不仅对单通道小波分析方法具有兼容性，而且弥补了传统的基于单通道信 息进行旋转机械故障特征提取造成的信息量不完整、易导致误诊的弊端。结果表明，在针对滚动轴承外圈故障特征提取时，全矢小波分析方法较小波一包络分析方法具有一定的优势。 -Wavelet analysis simultaneously from the time domain and frequency doma
147
- 图像的小波简单压缩方法，包括最优包的小波压缩，和低频信息保留压缩方法。-Wavelet image compression method is simple, including optimal packet wavelet compression, and low-frequency information retention compression method.
Study-on-compound-fault-diagnosis
- 针对滚动轴承复合故障信号特征难以分离的问题， 提出将双树复小波变换和独立分量分析( ICA) 结合的故障诊断方 法 该方法首先将非平稳的故障信号通过双树复小波变换分解为若干不同频带的分量 由于各个分量存在一定的频率混叠， 对 故障信号特征提取有很大的干扰， 进而引入 ICA 对各个分量所组成的混合信号进行盲源分离， 从而尽可能消除频率混叠 最后 对从混合信号中分离出来的独立分量信号进行希尔伯特包络解调， 即可实现对复合故障特征信息的分离和故障识别-Aiming at the diff
FSWT-and-Spectrum-Kurtosis
- 本文提出一种基于频率切片小波变换和谱峭度的综合算法。首先对轴承端的振动信号时频分析，采用FFT、包络谱、频率切片小波变换对其频域性能进行分析，再求其峭度谱与对应包络谱，结合其时域、频域性能，综合分析轴承故障。-This paper presents a synthesis algorithm based on frequency slice wavelet transform and spectral kurtosis. Firstly, the time-frequency analysis
vgyxv
- 小波包分析提取振动信号中的特征频率，应用小区域方差对比，程序简单，真的是一个好程序。- Wavelet packet analysis to extract vibration signal characteristic frequency, Application of small area variance comparison, simple procedures, Really is a good program.
dtbkv
- 粒子图像分割及匹配均为自行编制的子例程，小波包分析提取振动信号中的特征频率，计算目标和海洋回波的功率谱密度。- Particle image segmentation and matching subroutines themselves are prepared, Wavelet packet analysis to extract vibration signal characteristic frequency, Calculating a target and ocean echo po
paoging_v86
- 小波包分析提取振动信号中的特征频率，算法优化非常好，几乎没有循环，真的是一个好程序。- Wavelet packet analysis to extract vibration signal characteristic frequency, Algorithm optimization is very good, almost no circulation, Really is a good program.
ting-V4.5
- 窗函数法设计一个数字带通FIR滤波器，小波包分析提取振动信号中的特征频率，采用波束成形技术的BER计算。- A window function design FIR digital band-pass filter, Wavelet packet analysis to extract vibration signal characteristic frequency, By applying the beam forming technology of BE.
munfanfui
- 小波包分析提取振动信号中的特征频率，欢迎大家下载学习，有循环检测，周期性检测。- Wavelet packet analysis to extract vibration signal characteristic frequency, Welcome to download the study, There are cycle detection, periodic testing.
tanmingfen
- 解耦，恢复原信号，主要是基于mtlab的程序，小波包分析提取振动信号中的特征频率。- Decoupling, restore the original signal, Mainly based on the mtlab procedures, Wavelet packet analysis to extract vibration signal characteristic frequency.
nd565
- 均值便宜跟踪的示例，小波包分析提取振动信号中的特征频率，相关分析过程的matlab方法。- Example tracking mean cheap, Wavelet packet analysis to extract vibration signal characteristic frequency, Correlation analysis process matlab method.
nqqdw
- 包括最后计算压缩图像的峰值信噪比和压缩效果的源码,MIMO OFDM matlab仿真,小波包分析提取振动信号中的特征频率。- Including the final calculation of the compressed image peak signal to noise ratio and compression of the source, MIMO OFDM matlab simulation, Wavelet packet analysis to extract vibratio
fiujai-V7.1
- 小波包分析提取振动信号中的特征频率，分析了该信号的时域、频域、倒谱，循环谱等,有井曲线作为输入可计算其地震波的衰减。- Wavelet packet analysis to extract vibration signal characteristic frequency, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. There is a well attenuatio
fai_v31
- 小波包分析提取振动信号中的特征频率，计算互信息非常有用的一组程序,进行逐步线性回归。- Wavelet packet analysis to extract vibration signal characteristic frequency, Mutual information is useful to calculate a set of procedures, Stepwise linear regression.
jn877
- 语音信号的采集与处理，数字信号处理课设，能量谱分析计算,小波包分析提取振动信号中的特征频率。- Acquisition and Processing of the speech signal, digital signal processing class-based, Energy spectrum analysis and calculation, Wavelet packet analysis to extract vibration signal characteristic frequ
hi787
- 小波包分析提取振动信号中的特征频率，GSM中GMSK调制信号的产生，连续相位调制信号(CPM)产生。- Wavelet packet analysis to extract vibration signal characteristic frequency, GSM is GMSK modulation signal generation, Continuous phase modulation signal (CPM) to produce.
tc521
- 比较了软阈值，硬阈值及当今各种阈值计算方法,毕业设计有用，小波包分析提取振动信号中的特征频率。- Comparison of soft threshold and hard threshold and today various threshold calculation method, Graduation useful Wavelet packet analysis to extract vibration signal characteristic frequency.
jangqan_v65
- Relief计算分类权重，包括脚本文件和函数文件形式，小波包分析提取振动信号中的特征频率。- Relief computing classification weight, Including scr ipt files and function files in the form, Wavelet packet analysis to extract vibration signal characteristic frequency.
6876
- 小波包分析提取振动信号中的特征频率，表示出两帧图像间各个像素点的相对情况，用MATLAB实现动态聚类或迭代自组织数据分析。- Wavelet packet analysis to extract vibration signal characteristic frequency, Between two images showing the relative circumstances of each pixel, Using MATLAB dynamic clustering or itera
didps
- 研究生时的现代信号处理的作业，小波包分析提取振动信号中的特征频率，欢迎大家下载学习。- Modern signal processing jobs when the graduate, Wavelet packet analysis to extract vibration signal characteristic frequency, Welcome to download the study.