lmsxn

利用伴随矩阵进行矩阵求逆的程序，各阶矩阵皆可，不能求各有提示（不是很熟练，所以可能写的比较浅）(matrix inversion using the method of adjoint matrix)

说明：  WLS的电力系统状态估计，能够迅速完成节点迭代(WLS state estimation of power system that can quickly complete node iterator)

本程序是电力系统故障分析中的短路计算，包含各种常见短路类型。压缩包中有word说明，包含程序的前期工作和电力系统序网图。(This program is a short circuit calculation power system fault analysis, including all common types of short circuit. Compressed package word description, preliminary work and electrical systems Sequence Network contains program.)

灰度共生矩阵提取特征值，最近邻算法，进行纹理图像分类。creat_apprentissage用来训练样本，cooccurence是灰度共生矩阵提取特征值，knn是进行k最近邻算法，classif是纹理图像分类(coocurence matrix，using K nearest neighbor to classify textures images.)

数值计算程序：用Cholesky分解方法求解方程组(Numerical calculation procedures: the Cholesky decomposition method for solving equations)

Validate the enumeration order for object literals up to 100 named properties.

说明：  计算9格均匀电流面元阵方向图的matlab程序 (uniform grid computing nine current surface RUF direction of the plan Matlab procedures)

说明：  一篇关于matlab命令的学习文档，很适合初学者，我是新手还没有太多这方面的源码，只好自己手头的学习资料和大家分享(A study document on the matlab command, it is suitable for beginners, I am a novice in this area have not so much the source, but to their own learning materials on hand to share)

使用低通滤波器从含有噪声的信号中提取有用的正弦波 (见实验指导书 实验九 数字滤波器中的第一题) 目的：用数字滤波器从含有高频噪声的采样数据中提取正弦信号。 要求：①输入信号为一正弦波，并加入一个白噪声的干扰来模拟信号传输中的随机干扰信号（用以模拟含有噪声采样序列）。 （模拟含有噪声采样序列具体可用正弦波信号叠加高频噪声来实现，为了使滤波效果明显，本实验的高频噪声是用高频均匀分布白噪声（Uniform）通过Butterworth高通滤波器过滤生成的，高通滤波器的截止频率设为10倍输入信号频率。） ②在程序中设计一个低通巴特沃斯滤波器，以滤除信号中的噪声分量，提取输入的正弦波信号 。 ③可调节信号滤波器的截止频率和阶数，可显示滤波前与滤波后的时域信号。 ④给出滤波前与滤波后的频谱特性的显示。 (Using low pass filter extracting useful sine wave signal containing noise(see experiment instruction digital filter in the first nine questions)Objective: to use digital filter sampling data extract containing high frequency noise sine signal.Requirements: (1) the input signal is a sine wave, and add a white noise interference to simulate the random disturbance signal of the signal transmission (to simulate contains noise sampling sequence).(simulated the sampling sequence contains noise available sine wave signal superposition of high frequency noise, in order to make the filtering effect is obvious, the experiment of high frequency noise is Uniform distribution with high frequency white noise (Uniform) by Butterworth high-pass filter to filter generated, high-pass filter cutoff frequency set to 10 times the size of the input signal frequency.)(2) in the program design a low-pass butterworth filter, in order to filter out the noise in the signal component, extract the input sine wav)

hough变换，matlab编程。Hough变换是一种使用表决原理的参数估计技术。其原理是利用图像空间和Hough参数空间的点－线对偶性，把图像空间中的检测问题转换到参数空间。通过在参数空间里进行简单的累加统计，然后在Hough参数空间寻找累加器峰值的方法检测直线。(hough transform, matlab programming. Hough transform is a vote on the principle of using a parameter estimation techniques. The principle is the point of the image space using the Hough parameter space and line- duality converting the detection problem in the image space to the parameter space. By a simple statistical accumulated in the parameter space, and then in the Hough parameter space to find a method of detecting the peak accumulator line.)