neural_network_Matlab

三次样条插值函数边界条件由实际问题对三次样条插值在端点的状态要求给出。以第1边界条件为例，用节点处二阶导数表示三次样条插值函数，用追赶法求解相关方程组。(Cubic spline interpolation function from the real problems of boundary conditions cubic spline interpolation is required to give the state of the endpoint. In the first boundary condition, for example, with a node represents the second derivative of the cubic spline interpolation function, solving equations associated with the catch method.)

单级倒立摆LQR控制仿真 降维状态观测器的两种设计方法及算例(Inverted Pendulum Simulation Reduced LQR control of two state observer design method and examples)

在matlab中利用3阶和四阶B 样条函数构造正交小波；(use 3 order and fourth order B spline function structural orthogonal wavelet )

matlab code for Image overlay

k-均值算法，主要进行在matlab中的程序实现，进行图像的分割处理(k-means algorithm, mainly for the program in the matlab implementation for image segmentation)

说明：  EOF为经验正交分解，实现数据的时空分离。是处理气象资料的经典程序(EOF for the empirical orthogonal decomposition, spatial and temporal separation of data. To deal with the classic procedures for meteorological data)

说明：  这是用matlab编的burg算法和lenvinson算法，用来估计信号的功率谱。(This is a series of burg with matlab algorithms and lenvinson algorithm used to estimate the signal power spectrum.)

二维离散小波变换(Mallat快速算法)对图像进行二维离散小波变换, 变换级数大于等于3级,然后进行阈值化处理(阈值约为10左右),再统计系数中0的个数（百分比表示）并进行重构, 最后计算重构图像的峰值信噪比(PSNR). 数据：灰度图像lena.bmp或其它图像, 滤波器系数可以调用matlab中的wfilters函数获得, wfilters函数的使用请在matlab中help wfilters.(Two-dimensional discrete wavelet transform (Mallat fast algorithm) two-dimensional discrete wavelet transform image transformed series is greater than or equal to 3, and then processing thresholding (threshold of about 10 or so), the number of re statistical coefficient 0 ( reconstruct the final calculation of the peak signal-to-noise ratio (PSNR) of the reconstructed image data: the grayscale image lena.bmp or other images, the filter coefficients can call matlab in wfilters function to obtain, wfilters function, expressed as a percentage) in matlab help wfilters.)

L1magic 1.1.1 求解1范数优化的工具(L1magic 1.1.1 Solving a norm optimization tool)

构建三维点云，用不同颜色创建三维散点图的方法的实现(Achieve the creation of three-dimensional scatter plot with different colors methods)