yuchuli

matlab最小二乘原理下的曲线拟合方法汇总：polyfit函数、“”命令、fminsearch函数、nlinfit函数。附上一个具体的例子：1900-2000年的总人口情况的曲线拟合。(matlab principle of least squares curve fitting method Summary: polyfit function, " " command, fminsearch a function, nlinfit function. Attach a specific example from 1900 to 2000, the total population of the curve fitting.)

若不希望用与估计输入信号矢量有关的相关矩阵来加快LMS算法的收敛速度，那么可用变步长方法来缩短其自适应收敛过程，其中一个主要的方法是归一化LMS算法（NLMS算法），变步长 的更新公式可写成 W（n+1）=w（n）+ e（n）x（n） =w（n）+ （3.1） 式中， = e（n）x（n）表示滤波权矢量迭代更新的调整量。为了达到快速收敛的目的，必须合适的选择变步长 的值，一个可能策略是尽可能多地减少瞬时平方误差，即用瞬时平方误差作为均方误差的MSE简单估计，这也是LMS算法的基本思想。 (Want to estimate if the input signal vector and the relevant matrix to speed up the convergence rate of LMS algorithm, then the variable step size method can be used to shorten its adaptive convergence process, one of the main method is normalized LMS algorithm (NLMS algorithm) , variable step-size update formula can be written W (n+ 1) = w (n)+ e (n) x (n) = w (n)+ (3.1) where, = e (n) x (n) the right to express filter update vector iterative adjust the volume. In order to achieve the purpose of fast convergence, we must choose the appropriate value of variable step size, a possible strategy is as much as possible to reduce the instantaneous squared error, which uses the instantaneous squared error as the mean square error MSE of the simple estimate, which is the basic LMS algorithm思想.)

小波分析图像小波分析图像小波分析图像小波分析图像(Wavelet analysis of images based on wavelet analysis of images based on image analysis)

LRP Learning Algorithm in Cellular Automata Matlab Code

在电能质量检测中暂态信号和稳态信号的建模的源程序(Power quality detection of transient and steady-state signal source)

识别三类手势，采用贝叶斯分类器，提取hu不变矩特征(gesture recognition, using bayesian classifier, extracting hu moment features)

分别用LMS和RLS算法实现回音对消，并比较二者收敛性能，及不同信道参数对算法的影响(LMS and RLS algorithms were used to achieve echo cancellation, and compare the convergence performance of the two, and different channel parameters affect the algorithm)

说明：  基于拥挤距离的多目标粒子群优化算法，包含测试函数(Multi-objective particle swarm optimization algorithm based on crowded distance, including test functions)

无线定位代码，包括各种定位算法的基本函数，定位算法包括TDOA、TOA、AOA等(Wireless location code, including the basic function of a variety of localization algorithm, localization algorithm, including TDOA, TOA, AOA, etc.)

说明：  walshl变换的定义的原代码（m）及说明文件（txt）。(the instruction(.txt) and defination(.m) of walsh transform )