facial-expression

FIR 滤波器的低通，带通，高通实现，matlab(FIR using matlab)

用于将机车车轮踏面形貌以轮缘最高点对中，最终获得踏面磨耗，用以处理车轮踏面信息。(used for locomotive wheel tread morphology to the highest point on the rim, eventually get the tread wear.)

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. )

基于遗传算法的TSP算法，寻找最短的遍历N个城市的路径(TSP algorithm based on genetic algorithm to find the shortest path traversal N cities)

LDA 人脸识别的 程序段 大家下着看看吧 对大家有帮助的(LDA face recognition under the program segment we take a look at the bar for all of us help)

用c++语言，生成一个能让MATLAB自动加载的数据格式文件。该工具能够编译成为dll文件，随着其他文件一起动态执行和动态添加一个系统的功能。(transform an input file into .mat for matlab from c++)

说明：  pso源码，对初学者很有用。给大家参考下。谢谢！(pso source code, useful for beginners. Under your reference. Thank you!)

根据条形光波导折射率数据，分别针对宽高比a:b为1:1与 2:1两种情形，设计分析 ： 1. 满足单模与双模传输的 波导尺寸范围。（需要 给出色散曲线） 2. 针对两种情形，选取你 认为最佳的波导尺寸， 计算对应的模折射率。 （计算时假设上、下包 层均很厚）(According to the refractive index of the optical waveguide stripe of data, respectively, for an aspect ratio of a: b is 1: 1 and 2: 1 both cases, the design and analysis: 1. Meet single-mode and dual-mode transmission Bird size range. (need Given dispersion curve) 2. For both cases, you select That the best of the waveguide dimensions, Computes the corresponding mode refractive index. (Calculations assume that when the upper and lower package Layers are very thick))

说明：  基于遗传算法的评价函数（UUV）PID参数的遗传优化(Underwater Unmaned vecile)

<<Matlab_simulink通信系统仿真与建模实例精讲>>光盘内容，包含OFDM通信系统，MIMO通信系统，DS_CDMA通信系统，IS95前向链路系统，读者运行各通信系统的主程序就可以进行系统仿真。(" <Matlab_simulink通信系统仿真与建模实例精讲> " CD-ROM content, including OFDM communication system, MIMO communication systems, DS_CDMA communication systems, IS95 forward link system, the reader of the main program to run the communications system simulation can be carried out.)