VLC-using-OFDM

说明：  遗传算法及其matlab实现：用两个实例说明遗传算法的matlab程序实现(Matlab genetic algorithm and its realization: two examples of using genetic algorithm matlab program)

传统的短时谱估计语音增强算法通常假设语音谱分量相互独立，没有考虑语音谱分量间的相关性。针对这 一问题，该文提出一种新的基于多元Laplace分布模型的短时谱估计算法。首先，假设语音的离散余弦变换(DCT) 系数服从多元Laplace分布，以此利用谱分量间的相关性；在此基础上，利用多元随机矢量的高斯尺度混合模型表 示，推导得到语音DCT系数矢量的最小均方误差(MMSE)估计的解析表达式；并进一步推导了基于该分布模型的 语音存在概率，对最小均方误差估计子进行修正。实验结果表明，该算法在抑制背景噪声和减少语音失真等方面优 于传统的语音增强方法。(The spectral components of speech are usually assumed to be independent in traditional short-time spectrum estimation, which is not the case in practice. Tosolve this problem, a new speech enhancement algorithm with multivariate Laplace speech model is proposed in this paper. Firstly, the speech Discrete Cosine Transform (DCT) coefficients are modeled by a multivariate Laplace distribution, so the correlations between speech spectral components can be exploited. And then a Minimum-Mean-Square-Error (MMSE) estimator based on the proposed model is derived using a Gaussian scale mixture representation of random vectors. Furthermore, the speech presence uncertainty with the new model is derived to modify the MMSE estimator. Experimental results show that the developed method has better noise suppression performance and lower speech distortion compared to the traditional speech enhancement method. )

在数学规划，尤其在数学建模中，很好用,可以参考(In mathematical programming, especially in mathematical modeling, easy to use, you can refer to)

说明：  压缩包中是五六个relax算法程序，可自己下载查看 包括一维信号重构、雷达目标识别、谐波检测等(There are five or six relax algorithm programs in the compressed package, which can be downloaded and viewed by yourself Including one-dimensional signal reconstruction, radar target recognition, harmonic detection, etc.)

关于可配置长度的DFT的专利 非常值得学习(Configurable length DFT )

数字水印的程序，用matlab编的,包含数字水印你的嵌入、提取及鲁棒性分析(digital watermarking process, using Matlab series, including your digital watermark embedding, robust extraction and analysis)

说明：  用Matlab实现蒙特卡罗模拟的源程序,非常的好用(Monte Carlo simulation using Matlab realization of the source program, very easy to use)

Matlab工具包，包含了支持向量机和核函数的工具包，可直接调用(Matlab toolkit, including support vector machine SVM and kernel function tool kit, can be called directly )

QAM调制方式下的THP预编码程序与BPSK调制方式下基于ZF、MMSE及基于ZF、MMSE干扰消除的信号检测技术(QAM modulation coding procedures under the THP pre-BPSK modulation mode and based on ZF, MMSE, and based on ZF, MMSE interference cancellation signal detection)

matlab入门经典教程，中文，有详细图文和例题(Introduction to classical tutorial matlab, Chinese, detailed graphics and examples)