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[matlab] matlabVoice

Description: 語音信號是基於時間軸上的一維數位信號，在這裏主要是對語音信號進行頻域上的分析。在信號分析中，頻域往往包含了更多的資訊。對於頻域來說，大概有8種波形可以讓我們分析：矩形方波，鋸齒波，梯形波，臨界阻尼指數脈衝波形，三角波，餘旋波，余旋平方波，高斯波。對於各種波形，我們都可以用一種方法來分析，就是傅立葉變換：將時域的波形轉化到頻域來分析。-Voice signal is based on the timeline of one-dimensional digital signal, where mainly the speech signal in frequency domain analysis. In signal analysis, frequency domain often contains more information. For the frequency domain for about 8 allows us to analyze waveforms: rectangular square wave, sawtooth, trapezoidal wave, the critical damping index pulse, triangle wave, I spin wave, I spin square wave, Gaussian. For all waveforms, we can analyze in a way that is Fourier transform: the transformation of time domain waveform into the frequency domain to analyze
Platform: | Size: 133120 | Author: 林志強 | Hits:

[Special Effects] ImageProcessing-8.0

Description: 基于VC的图像处理程序 1.空间域灰度变化（线性、非线性）、直方图均衡化以及规格化； 2.空间域的噪音（椒盐、脉冲、高斯噪音等），均值滤波、中值滤波，最大值滤波； 3.频率域的巴斯沃通高低通滤波，余弦变换，walsh变换，SVD编码等； 4.简单的图形编码（hufman编码、香农编码、Golomb编码、算术编码）； 5.简单图像复原，涉及逆滤波和维纳滤波； 6.图像分割（这里只有一个大津阈值分割）。-VC-based image processing program 1. Spatial domain gray change (linear and nonlinear), histogram equalization and normalization 2. Spatial domain noise (salt and pepper, pulse, Gaussian noise, etc.), mean filtering, median filtering , maximum filtering 3. frequency domain Basi Wo pass and low pass filtering, cosine transform, walsh transform, SVD coding 4 simple graphical coding (hufman coding, Shannon coding, Golomb coding, arithmetic coding) 5. simple image restoration, involving inverse filtering and Wiener filtering 6 segmentation (there is only one Otsu threshold segmentation).
Platform: | Size: 5299200 | Author: Wenbo Huang | Hits:

[Algorithm] fdtd2D

Description: This MATLAB M-file implements the finite-difference time-domain solution of Maxwell s curl equations over a two-dimensional Cartesian space lattice comprised of uniform square grid cells. To illustrate the algorithm, a 6-cm-diameter metal cylindrical scatterer in free space is modeled. The source excitation is a Gaussian pulse with a carrier frequency of 5 GHz. The grid resolution (dx = 3 mm) was chosen to provide 20 samples. -This MATLAB M-file implements the finite-difference time-domain solution of Maxwell s curl equations over a two-dimensional Cartesian space lattice comprised of uniform square grid cells. To illustrate the algorithm, a 6-cm-diameter metal cylindrical scatterer in free space is modeled. The source excitation is a Gaussian pulse with a carrier frequency of 5 GHz. The grid resolution (dx = 3 mm) was chosen to provide 20 samples.
Platform: | Size: 5120 | Author: morteza | Hits:

[matlab] f0401_gaussian_shape

Description: 高斯脉冲生成，参数标准差alpha，时域频域分析。-Gaussian pulse generation, standard deviation parameter alpha, time domain and frequency domain analysis.
Platform: | Size: 1024 | Author: | Hits:

[matlab] gpolycycle1

Description: 这m文件显示时间和频域的0.5ns的高斯单脉冲包括未调制的单周期脉冲序列的超宽带无线系统的分析-These m files show the time and frequency domain for a 0.5nS Gaussian monopulse(or monocycle) including an unmodulated monocycle pulse train(polycycle)for UWB wireless system analysis
Platform: | Size: 1024 | Author: wang tao | Hits:

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