Search - matlab code for hadamard transform

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[Other] rake_path_dsss DL : 0: rake接收机的链路生成程序，包括短码生成，长码生成，哈达码变换，瑞利信道，以及多径衰落等。-rake receiver of the link generated procedures, including short-code generation, long-code generation, Hadamard transform, Rayleigh channel, as well as multipath fading and so on.
Update : 2025-02-17 Size : 2kb Publisher : 王波
[Special Effects] HTv32 DL : 0: 这是基于matlab的图像哈达玛变换域数字水印源代码。-This is based on the Hadamard Transform Image matlab domain digital watermarking source code.
Update : 2025-02-17 Size : 4kb Publisher : Mark Li
[Special Effects] Hadamard DL : 0: 一段对已知像素的正方形图像进行Hadamard变换的原代码，可设置变换阶数等参数。-For some of the known image pixel square Hadamard transform the original code, you can set parameters such as changing the order.
Update : 2025-02-17 Size : 1kb Publisher : 王凯
[Windows Develop] Urakkezips DL : 0: 使用matlab的m语言开发，功能为rake接收机的链路生成。其中包含短码生成成，业务信道长码生成，瑞利衰落信道代码，哈达码变换，用户原始数据扩频和信道衰落 -Use Matlab m-language development, functional link generated for the rake receiver. Contains short code generated into business channel long code generation, code Rayleigh fading channels, Hadamard transform raw data of users spread spectrum and channel fading
Update : 2025-02-17 Size : 2kb Publisher : 权力
[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 : 2025-02-17 Size : 2kb Publisher : Manzar Hussain