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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
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Size: 101182 |
Author: james |
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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
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Size: 101376 |
Author: james |
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Description: rice大学CHOI写的一个关于小波域HMT模型的图像去噪算法。算法比较经典。对研究HMT模型的同行有很大参考价值。-rice university CHOI written on wavelet-domain HMT model for image denoising algorithm. Comparison of the classical algorithm. HMT model of research has great reference value counterparts.
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Size: 773120 |
Author: shawn |
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Description:
6.2 版新增功能：
1.U盾（加密狗）功能
2.屏蔽国内IP访问功能
软件特点介绍：
1、使用ASP.Net(c#)、三层结构开发
2、自由选择模板，界面美观，皮肤设计灵活多变
3、在线支付：支付宝，网银在线，快钱，paypal,YeePay易宝支付,IPS环讯支付,腾讯财付通
4、销售统计，图表分析
5、集成多种流量统计系统
6、多国语言，内置简体，繁体和英语
7、UTF-8编码，可用于全球的服务器
8、自动生成静态HTML页面
9、报价表商品价格一目了然-6.2 version new features: 1.U rupiah (dongle) function 2. Shielding domestic IP access software features of introduction: one, the use of ASP.Net (c#), Three-tier structure of the development of 2, free to choose a template, interface aesthetics, 3 flexible skin design, online payment: pay Bao, net silver online, quick money, paypal, YeePay Epro pay, IPS, Central inquiry payments, pay Qualcomm Tencent Choi 4, sales statistics, charts, analysis of 5, integration of a wide range of traffic statistics System 6, multiple languages, built-Simplified, Traditional and English 7, UTF-8 encoding, can be used for global server 8, automatic generation of static HTML pages 9, quote sheet commodity prices at a glance
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Size: 4237312 |
Author: explod |
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Description: 计算Choi-Willams分布!显示Choi-Williams分布三维图!功能简单实用！-Choi-Willams distribution calculation! Choi-Williams distribution shows three-dimensional map! Function is simple and practical!
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Size: 1024 |
Author: 李泽 |
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Description: 时间序列的时频特性分析研究时间序列的傅里叶变换及逆变换，快速梅林变换及逆变换，短时离散傅里叶变换，得到瞬时频率。
研究时间序列的Born–Jondan时频分布图，Butterworth时频分布图，Choi–Williams时频分布图，得到瞬时频率。
-Time series analysis of time-frequency characteristics of time series of Fourier transform and inverse transform, the fast Mellin transform and inverse transform, short time discrete Fourier transformation, the instantaneous frequency. Of time series of Born-Jondan time-frequency distribution, Butterworth frequency distribution, Choi-Williams time-frequency map, get instantaneous frequency.
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Size: 15360 |
Author: 李倩 |
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Description: Dans cette nouvelle version avec interface graphique, l utilisateur a la possibilit?de (d?crypter des messages et des fichiers tout en gardant l extension du fichier source (bref, c est lui qui choi
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Size: 41984 |
Author: mazoul82 |
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Description: 非平稳信号分析。STFT变换及其MATLAB实现，Garbor展开、Choi-Williams分布、Wigner-Ville分布及其MATLAB实现。-Non-stationary signal analysis. STFT transform its MATLAB implementation, Garbor start, Choi-Williams distribution, Wigner-Ville distribution and its MATLAB implementation.
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Size: 6191104 |
Author: cd |
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Description: The report contains sourses and pictures. The program contains two sources. The first one computes the Wigner Distribution (second-order). The second one computes the Wigner Distribution with Choi-Williams filtering.
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Size: 1698816 |
Author: kami |
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Description: 对信号进行Choi-Williams分布分析的matlab函数-The matlab function of Choi-Williams distribution analysis
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Size: 1024 |
Author: tom ke |
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Description: 计算振动信号的Choi-Williams分布，通过对照轴承故障特性频率可知，轴承的外圈发现了故障，完成了对外圈的故障特征提取。-The Choi-Williams distribution of the vibration signal is calculated. Through the comparison of the bearing fault characteristic frequency, the outer ring of the bearing is found to be faulty.
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Size: 1024 |
Author: 梁君 |
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Description: matlab时频分析，STFT, CWT，WVD，平滑伪WVD，伪WVD，Rihacazek分布，Margenau-Hill分布，Page分布，伪Page分布，Choi-Williams分布，重排伪Wigner-Ville分布， 重排伪page分布，对时频分析学习的很好资料，对非平稳信号处理有很大帮助，无损检测，振动检测，对学习和处理信号有很大帮助-Matlab time-frequency analysis, STFT, CWT, WVD, smoothed pseudo Wigner Ville distribution (WVD), pseudo WVD, the distribution of Rihacazek, Margenau Hill distribution, distribution page, pseudo page distribution, Choi Williams distribution, rearrangement of pseudo Wigner Ville distribution, rearrangement pseudo page distribution, time-frequency analysis of very good learning materials, for non-stationary signal processing is of great help, nondestructive testing, vibration testing of learning and signal processing is of great help
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Size: 166912 |
Author: 孟祥吉 |
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Description: Matlab source code for all of time frequency distribution: choi-Williams, short time fourier transform, Wigner Ville, Hilbert,.... Clear explain in english. All source code have been tested and WORKED!!!!!
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Size: 5809152 |
Author: lonelyghost198
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Description: Time Frequency Toolbox matlab时频分析工具箱,里面有各种时频分析函数，用matlab实现的，小波变换，Gabor变化，短时傅里叶变换等等(AF Ambiguity function
AR Auto-regressive (filter or model)
ASK Amplitude shift keyed signal
BJD Born-Jordan distribution
BPSK Binary phase shift keyed signal
BUD Butterworth distribution
CWD Choi-Williams distribution
FM Frequency modulation
FSK Frequency shift keyed signal
GRD Generalized rectangular distribution
HT Hough transform
MHD Margenau-Hill distribution
MHSD Margenau-Hill-Spectrogram distribution
MMCE Minimum mean cross-entropy
NAF Narrow-band ambiguity function
PMHD Pseudo Margenau-Hill distribution
PWVD Pseudo Wigner-Ville distribution
QPSK Quaternary phase shift keyed signal
RID Reduced interference distribution
STFT Short-time Fourier transform
TFR Time-frequency representation
WAF Wide-band ambiguity function
WVD Wigner-Ville distribution
ZAM Zhao-Atlas-Marks distribution)
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Size: 306176 |
Author: fisher86 |
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