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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: • To design a GUI in MATLAB for Dual-Tone Multi-Frequency (DTMF) telephone key pad, including DTMF Signal generator and DTMF tone detector
• To simulate the DTMF signals with noise based on the specifications given.
• To decode and display the DTMF signals by using FFT algorithm
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Size: 16384 |
Author: 冯扬 |
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Description: 本文主要阐述了DTMF的原理及如何在MATLAB上产生DTMF信号，主要涉及到电话拨号音合成的基本原理及识别的主要方法，利用 MATLAB 软件以及 FFT 算法实现对电话通信系统中拨号音的合成与识别。并进一步利用 MATLAB 中的图形用户界面 GUI 制作简单直观的模拟界面。 能够利用矩阵不同的基频合成 0 － 9 不同按键的拨号音，并能够对不同的拨号音加以正确的识别，实现由拨号音解析出电话号码的过程，完成对电话拨号音系统的简单的实验仿真。-This paper described the principle and how DTMF in MATLAB to generate DTMF signals, mainly related to the telephone dial tone of the basic principles of synthesis and identification of the main methods, the use of MATLAB software and the FFT algorithm on the telephone communication system dial tone Synthesis and Recognition . And further the use of MATLAB in the production of graphical user interface simple and intuitive GUI interface simulation. Able to take advantage of matrix synthesis of different fundamental frequency 0- 9 different keys of the dial tone and be able to different dial tone to be the correct identification, the dial tone from a telephone number to resolve the process of completion of the telephone dial tone system, a simple experiment simulation.
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Author: 冯扬 |
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Description: 数字信号处理基于matlab 文件内容
/conv(卷积部分)
dupconv 重叠保留法
freqcirconv 频域圆周卷积
freqconv 频域卷积
timecirconv 时域圆周卷积
timeconv 时域卷积
/fft(频域分析部分)
d2fft 基2FFT
dft DFT最简化程序
dtft DTFT演示
/fir(fir滤波器设计)
fir 得到fir滤波器hn
getwindow 得到fir滤波器窗函数wn
idealfilter 理想滤波器(低通,高通,带通)hdn
idealhd 理想低通滤波器
/fir gui(fir滤波器GUI设计)
gui_top 总图
gui_fir fir滤波器GUI
gui_sigout 选择信号GUI
/power caculate(功率谱分析)
directpower 直接谱分析
indirectpower 间接谱分析(估计谱分析)
noise 噪声谱分析
/sigout(常见信号产生)
sigout 离散信号产生-Digital signal processing matlab based on the content of the document/conv (convolution part) dupconv law of reservations freqcirconv overlapping frequency domain circular convolution freqconv frequency domain convolution timecirconv time-domain circular convolution timeconv time-domain convolution/fft (frequency domain analysis part) d2fft base 2FFT dft DFT the most simplified procedure dtft DTFT demo/fir (fir filter design) fir be fir filter hn getwindow be fir filter window function wn idealfilter ideal filter (low pass, high pass, band-pass) hdn idealhd ideal low-pass Filter/fir gui (fir filter GUI design) gui_top general layout gui_fir fir filter selection GUI gui_sigout signal GUI/power caculate (power spectrum analysis) directpower direct spectral analysis indirectpower indirect spectral analysis (spectral analysis estimated) noise noise spectrum analysis/sigout (common signals) sigout discrete signals
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Size: 36864 |
Author: 芦达 |
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Description: 数字信号处理基于matlab 文件内容
/conv(卷积部分)
dupconv 重叠保留法
freqcirconv 频域圆周卷积
freqconv 频域卷积
timecirconv 时域圆周卷积
timeconv 时域卷积
/fft(频域分析部分)
d2fft 基2FFT
dft DFT最简化程序
dtft DTFT演示
/fir(fir滤波器设计)
fir 得到fir滤波器hn
getwindow 得到fir滤波器窗函数wn
idealfilter 理想滤波器(低通,高通,带通)hdn
idealhd 理想低通滤波器
/fir gui(fir滤波器GUI设计)
gui_top 总图
gui_fir fir滤波器GUI
gui_sigout 选择信号GUI
/power caculate(功率谱分析)
directpower 直接谱分析
indirectpower 间接谱分析(估计谱分析)
noise 噪声谱分析
/sigout(常见信号产生)
sigout 离散信号产生-Digital signal processing matlab based on the content of the document/conv (convolution part) dupconv law of reservations freqcirconv overlapping frequency domain circular convolution freqconv frequency domain convolution timecirconv time-domain circular convolution timeconv time-domain convolution/fft (frequency domain analysis part) d2fft base 2FFT dft DFT the most simplified procedure dtft DTFT demo/fir (fir filter design) fir be fir filter hn getwindow be fir filter window function wn idealfilter ideal filter (low pass, high pass, band-pass) hdn idealhd ideal low-pass Filter/fir gui (fir filter GUI design) gui_top general layout gui_fir fir filter selection GUI gui_sigout signal GUI/power caculate (power spectrum analysis) directpower direct spectral analysis indirectpower indirect spectral analysis (spectral analysis estimated) noise noise spectrum analysis/sigout (common signals) sigout discrete signals
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Size: 36864 |
Author: 李文 |
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Description: this program deals with simple speech processing like fft, use of hamming window, my durbin algorithm and likes. this program has gui too.
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Size: 131072 |
Author: switspk |
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Description: 该gui函数基本上包括图像处理里面的最基本处理，相当于一个小型photoshop。比如读取文件，几何变换中的垂直镜像，平移，旋转，缩放；正交变换的DFT，FFT，DCT，DST，DHT，DWashT；灰度处理中的反色，直方图均衡，全局线性变换，分段线性变换，指数非线性变换，对数非线性变换；图像增强里面的加噪声，平滑，锐化，伪彩色增强；图像分割里面的灰度阈值法，Robert，Laplace，sobel，prewitt，canny算子边缘检测法；图像恢复里面的直接逆滤波，维纳滤波；图像编码里面的霍夫曼编码，行程编码-Basically, the gui functions including the most basic image processing inside the handle, which is equivalent to a small photoshop. For example, read the document, the geometric transformation of the vertical mirroring, shifting, rotating, zooming orthogonal transformation of the DFT, FFT, DCT, DST, DHT, DWashT anti-gray color processing, histogram equalization, global linear transformation , piecewise linear transformation, index of non-linear transform of the number of non-linear transformation image enhancement which increases the noise, smoothing, sharpening, pseudo-color enhancement the gray-scale image segmentation inside the threshold, Robert, Laplace, sobel, prewitt, canny edge detection operator method image restoration inside direct inverse filtering, Wiener filtering image coding inside the Huffman code, and so on Run-Length Coding
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Size: 398336 |
Author: guhuxiang |
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Description: GUI界面，语音信号滤波程序，低通、带通、多带通、fft卷积滤波。-failed to translate
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Size: 17408 |
Author: wangyu |
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Description: 本文主要阐述了DTMF的原理及如何在MATLAB上产生DTMF信号，主要涉及到电话拨号音合成的基本原理及识别的主要方法，利用 MATLAB 软件以及 FFT 算法实现对电话通信系统中拨号音的合成与识别。并进一步利用 MATLAB 中的图形用户界面 GUI 制作简单直观的模拟界面。 能够利用矩阵不同的基频合成 0 － 9 不同按键的拨号音，并能够对不同的拨号音加以正确的识别，实现由拨号音解析出电话号码的过程，完成对电话拨号音系统的简单的实验仿真。-This paper described the principle and how DTMF in MATLAB to generate DTMF-This paper describes the principle of DTMF and how MATLAB to generate DTMF signals, mainly related to the telephone dial tone and identification of the basic principles of synthesis of the main method, using MATLAB software, and the FFT algorithm to the telephone communication system, the synthesis and identification of dial tone . And further the use of MATLAB' s graphical user interface simple and intuitive GUI make the analog interface. Able to use a different fundamental frequency matrix synthesis of 0- 9 different button dial tone and can be different correct identification of dial tone to achieve by the dial tone of the process of parsing a telephone number to complete the telephone dial tone system, a simple experiment simulation.-This paper described the principle and how DTMF in MATLAB to generate DTMF
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Size: 1024 |
Author: 余 |
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Description: 使用Matlab Gui实现的数字信号处理常用算法，包括卷积，FFT，FIRIIR数字滤波器设计，最佳滤波器，自适应滤波，卡尔曼滤波等-Implemented using the Matlab Gui commonly used digital signal processing algorithms, including convolution, FFT, FIRIIR digital filter design, the best filters, adaptive filtering, Kalman filtering, etc.
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Size: 363520 |
Author: 张辉 |
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Description: 实时照片质量无限海水，使用OpenGL。
项目提供并使用了AntTweakBar图形用户接口（GUI）-Ocean lighting algorithm:
"Real-time Realistic Ocean Lighting using
Seamless Transitions from Geometry to BRDF"
Eric Bruneton, Fabrice Neyret, Nicolas Holzschuch
Euro graphics 2010
Ocean surface synthesized by FFT:
"Simulating Ocean Water", J. Tessendorf,
SIGGRAPH course notes, 2005.
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Size: 7869440 |
Author: GoldenCloud |
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Description: audio filter,fft,dft,pole zero plot,gui,dsp signal operations
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Size: 94208 |
Author: ashish |
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Description: FFT GUI
The FFT is a complicated algorithm, and its details are usually left to those that specialize in such things. This section describes the general operation of the FFT, but skirts a key issue: the use of complex numbers. If you have a background in complex mathematics, you can read between the lines to understand the true nature of the algorithm. Don t worry if the details elude you few scientists and engineers that use the FFT could write the program from scratch.-FFT GUI
The FFT is a complicated algorithm, and its details are usually left to those that specialize in such things. This section describes the general operation of the FFT, but skirts a key issue: the use of complex numbers. If you have a background in complex mathematics, you can read between the lines to understand the true nature of the algorithm. Don t worry if the details elude you few scientists and engineers that use the FFT could write the program from scratch.
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Size: 9216 |
Author: majd |
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Description: 一个用matlab实现的fft工具，带有fft算法，而且是GUI环境。-A matlab implementation of fft tools, and with the fft algorithm, but the GUI environment
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Size: 14336 |
Author: 林熟饭 |
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Description: 使用matlab GUI写的一个FFT算法分析程序-FFT algorithm analysis program written using matlab GUI
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Size: 488448 |
Author: Engr.Echo |
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Description: Matlab程序，GUI窗口
用FFT程序计算有限长度正弦信号y=sin(2*pi*f*t) ,0<=t<=N*T-FFT program calculate the finite length of the sinusoidal signal y = sin (2* pi* f* t), 0 < = t < = N* T respectively the DFT results obtained and analyzed and discussed in the following cases: a) the signal frequency f = 50Hz, the sampling the credited with N = 32, the sampling interval T = 0.000625sb) signal frequency f = 50Hz, the sampling points of N = 32, the sampling interval T = 0.005sc), the signal frequency f = 50 Hz, the sampling points N = 32, the sampling interval T = 0.0046875sd) signal frequency f = 50Hz, the sampling points of N = 32, the sampled interval T = 0.004se) signal frequency f = 50Hz, the sampling points of N = 64, the sampling interval the T = 0.000625sf) signal frequency f = 250Hz, the sampling points N = 32, the sampling interval T = 0.005sg) c) a signal-post 32, to do a 64-point FFT
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Size: 12288 |
Author: moumiao |
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Description: Matlab程序，GUI窗口用FFT程序计算有限长度正弦信号y=sin(2*pi*f*t) ,0<=t<=N*T
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Size: 12780 |
Author: 693766534@qq.com |
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Description: 数字信号分析，用matlab你建立一个具有界面的频谱分析仪-make a FFT spectrum analyzer using the GUI of matlab and tells some basic knowledge of the spectrum analyze of a signal.
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Size: 726016 |
Author: 冯佳 |
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Description: （1）在MATLAB环境下编写FFT算法（不调用系统现有函数）；
（2）实现对选定图片进行FFT计算、还原（IFFT计算），并与系统FFT函数做对比，进行分析；
（3）设计GUI界面。-(1) the preparation of the FFT algorithm (do not call the system existing function) in MATLAB environment
(2) to achieve the selected image to the FFT calculation, reduction (IFFT computing), and FFT functions to do comparison with the system for analysis
(3) Design GUI interface.
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Size: 183296 |
Author: 黄培哲 |
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Description: 用FFT和戈泽尔算法基于GUI界面解码拨号语音信号(FFT;GUI;geoterzel;SCUT;DSP)
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Size: 5586944 |
Author: CeciliaLau |
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