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TF-analysis
- 两篇时频分析的论文，时频分析技术简述与基于matlab的信号时频分析仿真，可以在编程时参考学习。-Two time-frequency analysis papers, time-frequency analysis technology brief matlab-based signal frequency analysis simulation can learn programming reference.
ITD
- 很经典的时频分析论文，从短时傅里叶变换出发，提出了intrinsic time-scale decomposition方法。-Classic time-frequency analysis papers
Local-waveanalysis-of-the-law
- 为了克服傅氏变换不能同时保留信号的时间 信息和频率信息的缺点,人们引进了局域波法，它是最近发展起来的处理非线性、非平稳信号的时频分析方法,通过对信号局部特征出发,直接由信号本身构造基函数,具有良好的局部适应性-In order to overcome the Fourier transform of the shortcomings of the time and frequency information of the signal can not be reserved, the int
LTEMIMOOFDM111
- 宽带无线通信是信息化社会发展的助推器，它正在改变人们的生活方式，人 们将可以在任何时候、任何地点享受数字冲浪、视频点播、时频会议等新的时髦。 MIMO系统的信道容量与发射端和接收端的最小天线数成线性关系，这使MIMO技 术成为LTE、B3G和未来4G系统中最有前途的技术之一。-Broadband wireless communication is the booster for the development of information society, it is changin
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- 运用matlab对轴承故障进行分析，获得轴承内外圈故障的时频图和功率谱-Using MATLAB to analyze the bearing fault, time-frequency diagram and power spectrum of inner and outer rings of bearing failure
xiaoboxishu1
- 实现小波分析 计算小波系数 能画出二维小波时频图-Wavelet analysis of wavelet coefficients to calculate to draw two-dimensional wavelet time-frequency diagrams..
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- 对重分配小波尺度谱存在着时、频分辨率不能同时达到最佳及当振动信号中存在着能量较大的噪声时会降低其时频分布可读性的缺陷，提出一种基于参数优化和奇异值分解(SVD)提高重分配尺度谱时频分布可读性的方法。首先利用Shan— non熵方法优化重分配尺度谱基函数的时间．带宽积(TBP)，克服其时、频分辨率不能同时达到最佳的缺陷，再对重分配尺度谱 进行SVD降噪降低噪声干扰影响，提高时频分布的可读性。最后用该方法对仿真信号和滚动轴承故障信号进行了分析，结果表明该方法的时频聚集性更好，抗噪能力更强，能
YilmazRickard2004
- BLIND SOURCE SEPARATION IN THE TIME FREQUENCY DOMAIN TECHBIQUES FOR SPEECH
vc.chen
- 分析了傅里叶的不实用性，引出了时频分析的在机动目标的应用。-Fourier analysis is not practical, time-frequency analysis leads to the application of maneuvering target.
MATLAB
- 由于多径效应和移动台运动等影响因素，使得移动信道对传输信号在时间、频率和角度上造成了色散，即时间色散、频率色散、角度色散等等，因此多径信道的特性对通信质量有着重要的影响，而多径信道的包络统计特性则是我们研究的焦点。根据不同无线环境，接收信号包络一般服从几种典型分布，如瑞利分布、莱斯分布等。在此专门针对服从瑞利分布的多径信道进行模拟仿真，进一步加深对多径信道特性的了解。-Due to multipath effects and the mobile station sports and other
mel-frequency!
- Voice Recognition Algorithms using Mel Frequency Cepstral Coefficient (MFCC) and Dynamic Time Warping (DTW) Techniques
S-transform
- The S transform is variable window of short time Fourier transform (STFT) or an extension of wavelet transform (WT). It is based on a scalable localizing Gaussian window and supplies the frequency dependent resolution. In this tutorial, we int
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- The Fault Diagnosis of the Rolling Bearing Based on the LMD and Time-frequency Analysis
FNPAQR
- shows the cross spectra obtained between the average signals from cluster 6 and 7 of the parcellation shown in Fig. 1. Hot spots in the time-frequency plane indicate regions in which the signal exhibit high synchronicity. Results showed that the dyna
OM15
- Spectrally Efficient Time-Frequency Training OFDM for Mobile Large-Scale MIMO Systems
diagnosis--based-on-LEM
- A novel fault feature extraction method based on the local mean decomposition technology and multi-scale entropy is proposed in this paper. When fault occurs in roller bearings, the vibration signals picked up would exactly display non-stationary
Recent-timefrequency-analysis
- Nonstationary signal analysis one of the main topics in the field of machinery fault diagnosis.Time-frequency analysis can identify the signal frequency components, reveals their time variant features,and is an effective tool to extract machinery h
Vibration-Monitoring
- The HHT represents a time-dependent series in a two-dimensional (2-D) time-frequency domain by extracting instan eous frequency components within the signal through an Empirical Mode Decomposition (EMD) process. The analytical background of t
mt
- 小波分析理论是一种新兴的信号处理理论，它在时间上和频率上都有很好的局部性，这使得小波分析非常适合于时频分析，借助时频局部分析特性，小波分析理论已经成为信号去噪中的一种重要的工具。利用小波方法去噪，是小波分析应用于实际的重要方面。-The wavelet analysis theory is a new signal processing theory. It has a very good topicality in time and frequency, which makes the wav
wavelet
- With the development of power systems and the extensive application of nonlinear elements in the electricity system, the problem of ferroresonance do harm to the network and electricity facilities has become more prominent. Wavelet analysis h