matlab_programming_classic_shortest_path_algorithm

newton_raphson方法，广泛应用的积分方法。(newton_raphson method widely used in the integration method.)

说明：  很好的fm方面的文章，大家可以看看，会有帮助的。。(Very good FM articles, everybody can consult, would help)

使用自组织网络som根据动物特征进行分类的示例代码(Using self-organizing network based on animal characteristics to classify som sample code)

永磁电机的矢量控制，在此基础上包含了负载转矩观测器(the load torque observer for PMSM)

基于fdtd的双导线传输模型，在matlab中运行(Two wire-based transmission model fdtd, run in matlab)

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. )

超宽带发射机，采样跳时脉冲位置调制方式进行。对于UWB学习非常重要(Ultra-wideband transmitter pulse position modulation, sampling jump. Is very important for UWB learning)

学习OFDM系统仿真的好例子，对了解系统组成和原理非常有用。(OFDM system simulation study a good example of understanding the system and principles of very useful.)

提供瑞利信道衰减模型的matlab源代码。(Rayleigh channel attenuation model matlab source code.)

CODE UESED FOR CHANG IMAGE FORMAT