all_s2ff_code

说明：  空间杆有限元分析，包中有详细的WORD文档说明(Space bar finite element analysis, a detailed package documentation WORD)

MATLAB——通讯录软件分享 使用MATLAB GUIDE，可以载入已存在的数据库，可以新增新的数据库（数据用excel文件存放的）。(MATLAB- Address Book software to share with MATLAB GUIDE, you can load an existing database, you can add new database (data storage with the excel file.))

自校正实例源代码，包含最小方差（间接和直接）自校正控制源代码，极点配置自校正控制等。(Since the correction source code examples, including minimum variance (indirect and direct) from corrective control the source code, and the pole assignment pid self-tuning control, etc.)

The Program helps to remove numbers at the beginning of a Matlab script. It is very useful when one has copied a code from a text into Matlab environment and eager to tun it immediately.

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. )

四元数表示的，用于matlab仿真的工具箱。通过它，可以掌握四元数的一些特征。(quaternion said, for the simulation of Matlab Toolbox. Through it, we can get quaternion some characteristics.)

These codes are to implement the link of free space optics.

说明：  压缩感知中基于DCT基的OMP算法，用正交匹配追踪重构出原始信号(DCT-based compressed sensing based OMP algorithm, orthogonal matching pursuit reconstruct the original signal)

PSO算法简单、易实现且参数较少，现已被应用于函数优化、神经网络训练、模糊系统控制以及其它遗传算法的应用领域(PSO algorithm is simple, easy to implement and less parameters, have been applied to function optimization, neural network training, fuzzy system control and other applications of genetic algorithms)

在hfss中用matlab实现重命名操作(Using matlab to achieve in hfss rename operation)