Description: 信号与系统基础知识包括连续信号与模型、离散信号与模型；常用信号变换包括Z变换、Chirp Z变换、FFT变换、DCT变换和Hilbert变换等；离散系统结构包括IIR、FIR和Lattice结构；IIR滤波器设计包括模拟和数字低通、高通、带通与带阻滤波器设计，以及基于冲激响应不变法和双线性Z变换法的IlR滤波器设计等；FIR滤波器设计包括基于窗函数、频率抽样法和切比雪大逼近法的FIR滤波器设计；平稳信号分析包括经典功率谱估计、基于参数模型的功率谱估计和基于非参数模型的功率谱估计；非平稳信号分析包括STFT变换、Gabor展开、Wigner-Ville分布与Choi-Williams分布；非高斯信号分析包括基于非参数法的双谱估计、基于参数模型的双谱估计，以及双谱估计的应用；信号处理的GUI实现包括滤波器设计与分析的FDATool工具和滤波器设计与信号分析的SPTool工具。-signals and systems based on knowledge, including continuous signal with the model, discrete signal and model; Common signals include transform Z transform, chirp Z-transform, FFT transform. DCT and Hilbert transform; Discrete system architecture including IIR, FIR and Lattice structure; IIR filter design, including analog and digital low-pass, high-pass, band-pass and band stop filter design, Based on the impulse response of the same law and bilinear Z transform the IlR filter design; FIR filter design including on the basis of the window function, frequency sampling and snow all over the big approximation of FIR filter design; stationary signal analysis include classical power spectrum estimation, Based on the model parameters of the power spectrum estimation and non- parametric model b Platform: |
Size: 101376 |
Author:james |
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Description: HHT谱计算程序，不是rilling版本，用改进的Hilbert变换，效果好一些，供大家参考。-HHT spectrum of the calculation procedures, rilling is not a version of the Hilbert transform used to improve the results better for your reference. Platform: |
Size: 1024 |
Author:齐磊 |
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Description: 用于希尔伯特变换，里面有HHT谱计算程序，不是rilling版本，用改进的Hilbert变换，效果好一些，供大家参考-HHT spectrum of the calculation procedures, rilling is not a version of the Hilbert transform used to improve the results better for your reference. Platform: |
Size: 183296 |
Author:林云 |
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Description: 对信号进行EMD分解后画出信号的希尔伯特包络谱程序，自己编写的，调试成功-EMD decomposition of the signal after the draw of the Hilbert envelope of the signal spectrum of procedures, I have written, debugging success Platform: |
Size: 1024 |
Author:jhhxl |
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Description: 对信号进行EMD分解并绘制希尔伯特时频谱的程序，自己做毕业设计编写的- EMD decomposition of signals and time-frequency spectrum of the Hilbert mapping procedures, the design of their own graduates prepared
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Size: 1024 |
Author:jhhxl |
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Description: HHT变换的EMD方法和希尔伯特谱的一些源程序，以及一些实例数据-HHT transform the EMD method and Hilbert spectrum of some of the source, and some examples of data Platform: |
Size: 5120 |
Author:dinghao |
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Description: 这是一个完整的EMD分解全过程，有Hilbert谱和边际谱。直接把源码复制到matlab即可。很全面。-This is a complete decomposition of the whole process of EMD, a Hilbert spectrum and marginal spectrum. Directly to the source code can be copied to the matlab. Very comprehensive. Platform: |
Size: 37888 |
Author:许 |
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Description: 优秀论文及配套源码。Hilbert-Huang变换(HHT)是一种新的非平稳信号处理技术，该方法由经验模态 分解(EMD)与Hilbert谱分析两部分组成。任意的非平稳信号首先经过EMD方法处理后被分解为一系列具有不同特征尺度的数据序列，每一个序列称为一个固有模态函数(IMF)，然后对每个IMF分量进行Hilbert谱分析得到相应分量的Hilbert谱，汇总所有Hilbert谱就得到了原信号的谱图。该方法从本质上讲是对非平稳信号进行平稳化处理，将信号中真实存在的不同尺度波动或趋势逐级分解出来，最终用瞬时频率和能量来表征原信号的频率含量。
本文研究了基于HHT的暂态电能质量扰动检测方法，介绍了HHT的基本原理和利用HHT检测电能质量多扰动信号的实现方法。仿真试验表明该方法可以实时检测扰动的起止时刻，持续时间和扰动幅度，适用于电能质量多扰动的监测和辨识系统。
-Hilbert-Huang Transform(HHT) is a new non-stationary signal processing technology，including the Empirical Mode Decomposition(EMD) and Hilbert spectral analysis．In this method，arbitrary non-stationary signals was divided into a series data sequence with different characteristic scales after the first EMD treatment，each sequence is called an intrinsic mode function(IMF)，and then each IMF component gained corresponding the Hilbert spectrum though Hilbert spectrum analysis，a summary of all Hilbert spectrum assembled to the spectra of the original signal．In essence，this method is a stable processing for non-stationary signal，which decomposed the different fluctuations or trends in the signal in rum，and represented the frequency content of the original signal using the final instantaneous frequency and energy．
This paper study a method to detect power quality disturbances based on the HHT，in which the principle and the realization of the HHT and the realization of power quality disturbance Platform: |
Size: 321536 |
Author:NBB |
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Description: 本程序主要通过EMD和hilbert求IMF，作出HHT归一化能量谱图（三维图），边际谱图和瞬时能量图，并做完备性验证-The program primarily through EMD and hilbert seek IMF, to HHT normalized energy spectrum (three-dimensional map), the marginal spectrum and the instantaneous energy map, and do a complete validation Platform: |
Size: 4096 |
Author:ifengdoo |
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Description: 该程序绘制了仿真信号的FFT频谱和功率谱，并调用emd分析方法，绘制了emd分解结果，以及瞬时包络和瞬时频率图，还有Hilbert-Huang谱和Hilbert边际谱。-The program draws the FFT spectrum and the power spectrum of the simulated signal and call emd analysis, drawn emd decomposition and instantaneous envelope and instantaneous frequency plot, as well as Hilbert-Huang spectrum and Hilbert marginal spectrum. Platform: |
Size: 167936 |
Author:张连鹏 |
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Description: MATLAB的希尔伯特谱分析，导入数据实现算出。最下二乘拟合算法。快速傅里叶变换详细算法。(MATLAB Hilbert spectrum analysis, import data to achieve calculation.The two by fitting algorithm. With the fast Fourier transform algorithm.) Platform: |
Size: 1177600 |
Author:CHENFEIFEI
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Description: HHT主要内容包含两部分，第一部分为经验模态分解（Empirical Mode Decomposition，简称EMD），它是由Huang提出的；第二部分为Hilbert谱分析（Hilbert Spectrum Analysis，简称HSA）。(The main content of HHT includes two parts. The first part is Empirical Mode Decomposition (EMD), which is proposed by Huang. The second part is Hilbert spectrum analysis (Hilbert Spectrum Analysis, referred to as HSA).) Platform: |
Size: 183296 |
Author:WanderKing
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Description: hilbert谱分析具体程序代码以及绘制hilbert时频谱(Hilbert spectrum analysis of specific code and the mapping of Hilbert spectrum) Platform: |
Size: 13312 |
Author:小灰灰jjh8 |
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Description: hht变换的主要程序,里面包括了时频图、Hilbert频谱图。(The main program of hht transformation includes time-frequency charts and Hilbert spectrum diagrams.) Platform: |
Size: 4096 |
Author:西鼠 |
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Description: 使用2019a Matlab所带HHT程序编写的三维hilbert谱，并带仿真程序，可以直接运行出结果。(The 3D Hilbert spectrum written by HHT program of 2019a MATLAB and the simulation program can run the result directly.) Platform: |
Size: 322560 |
Author:YSU man |
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Search - hilbert spectrum matlab