Search - matlab walsh code transform

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[MultiLanguage] cdma DL : 0: 实现四路复用程序。通过walsh正交码的复用技术，matlab仿真-achieve multiplexing process. Walsh orthogonal codes through the Reuse, Matlab simulation
Update : 2025-02-19 Size : 3kb Publisher : 郭志
[Compress-Decompress algrithms] Imagecompressionandsolutioncompression DL : 0: 一张图片是之前用摄像机采集的，另一张图片是经过离散沃尔什变换再量化编码压缩后又解压所得，能看出区别吗？呵呵。flik.m是原图，newflik.m是新图。附上所有MATLAB源程序，有兴趣的话，你也可以用这几个程序对自己的照片“加工”一番。以下6个程序分别保存为6的m文件，文件名与下面给出的一致。待“加工”图片应该存放在Matlab的Work目录下。-Before a picture is collected by the camera, another picture is the result of discrete Walsh transform and then re-quantization coding compression decompression income, you can see the difference? Ha ha. flik.m is the image, newflik.m is a new map. MATLAB source code attached to all interested, you can also use these procedures on their own photo processing of something. The following six procedures were saved as 6 m file, the file name is given with the following consensus. To be processing picture should be stored in Matlab s Work directory.
Update : 2025-02-19 Size : 1kb Publisher : 余海风
[Graph program] ImageProcess DL : 0: 图像处理的基本方法源代码，包括：正交变换，傅里叶变换，离散余弦变换，沃尔什变换，卷积，平滑与锐化，边缘增强，Sobel边缘检测和Hough边缘检测，反转，腐蚀与膨胀，开与闭，边缘提取，细化，增强CDib等-The basic method of image processing source code, including: orthogonal transform, Fourier transform, discrete cosine transform, Walsh transform, convolution, smoothing and sharpening, edge enhancement, Sobel edge detection and Hough edge detection, inversion, corrosion and expansion of open and closed, edge extraction, refining and enhancing such CDib
Update : 2025-02-19 Size : 17kb Publisher : 赵堃
[Graph program] walsh DL : 0: Walsh变换的c语言处理实现，可将其通过Matlab接口转换成matlab代码-Walsh Transform c language processing to achieve, can be converted through Matlab interface matlab code
Update : 2025-02-19 Size : 38kb Publisher : 张然
[matlab] TransformCoding DL : 0: Matlab code to study the decorrelation and energy packing efficiency of three transform techniques: Karhunen-Loève transform (KLT), discrete-cosine transform (DCT), and Walsh-Hadamard transform (WHT). Using a given vector of signal samples, it transforms the signal vector, quantize the transformed samples, and reconstruct the signal samples from the quantized samples
Update : 2025-02-19 Size : 2kb Publisher : cs
[matlab] Modeling-Rayleigh-fading-channel-based-on-modifie DL : 0: This Matlab Code models a Rayleigh fading channel using a modified Jakes channel model. A modified Jakes model chooses slightly different spacings for the scatterers and scales their waveforms using Walsh–Hadamard sequences to ensure zero cross-correlation. \alpha_n = \frac{\pi(n-0.5)}{2M} and \beta_n = \frac{\pi n}{M}, results in the following model, usually termed the Dent model or the modified Jakes model: R(t,k) = \sqrt{\frac{2}{M}} \sum_{n=1}^{M} A_k(n)\left( \cos{\beta_n} + j\sin{\beta_n} \right)\cos{\left(2\pi f_d t \cos{\alpha_n} + \theta_{n}\right)}. The weighting functions A_k(n) are the kth Walsh–Hadamard sequence in n. Since these have zero cross-correlation by design, this model results in uncorrelated waveforms. The phases \,\!\theta_{n} are initialized randomly and have no effect on the correlation properties. Matlab fast Walsh-Hadamard transform function is used to efficiently generate samples using this model.-This Matlab Code models a Rayleigh fading channel using a modified Jakes channel model. A modified Jakes model chooses slightly different spacings for the scatterers and scales their waveforms using Walsh–Hadamard sequences to ensure zero cross-correlation. \alpha_n = \frac{\pi(n-0.5)}{2M} and \beta_n = \frac{\pi n}{M}, results in the following model, usually termed the Dent model or the modified Jakes model: R(t,k) = \sqrt{\frac{2}{M}} \sum_{n=1}^{M} A_k(n)\left( \cos{\beta_n} + j\sin{\beta_n} \right)\cos{\left(2\pi f_d t \cos{\alpha_n} + \theta_{n}\right)}. The weighting functions A_k(n) are the kth Walsh–Hadamard sequence in n. Since these have zero cross-correlation by design, this model results in uncorrelated waveforms. The phases \,\!\theta_{n} are initialized randomly and have no effect on the correlation properties. Matlab fast Walsh-Hadamard transform function is used to efficiently generate samples using this model.
Update : 2025-02-19 Size : 2kb Publisher : Manzar Hussain
[2D Graphic] walshV8 DL : 0: 这个文件是基于局部walsh变换的matlab代码，用来做图像分割，希望对大家有所帮助-This document is based on local walsh transform matlab code to do image segmentation, we hope to help
Update : 2025-02-19 Size : 176kb Publisher : zhushidong