erjinzhi改进pso_0802

programs for matlab in electrical engendering

用matlab实现LMS自适应算法，20阶的fir滤波器，自适应效果非常好。(Matlab LMS adaptive algorithm, two order of fir filter, the adaptive effect is very good.)

mel frequency cepstrum coeffcients

说明：  这个code读取1～6个txt文件，在每个文件中找到相同数值最大的个数然后找到该数后一个数值，结果写txt文件中。(this code read the txt file from 1 to 6 and find the number of same value and write this value into Result.txt file.)

例程：通信系统与 MATLAB (Proakis)，很有益处，不妨(routines : communication system with MATLAB (Proakis), useful, to take a look)

Principal component analysis (PCA) is a mathematical procedure that uses an orthogonal transformation to convert a set of observations of possibly correlated variables into a set of values of uncorrelated variables called principal components.

用matlab所学的知识，编写最小二乘法拟合程序，以解决物理实验中的最小二乘法拟合曲线以及相关系数等的问题。(With matlab learned, the preparation method of least squares fitting procedure to solve the problems of the least-squares fitting curve and correlation coefficient physics experiments.)

采用geese算法对采样的阵列信号进行处理，根据阵列结构上存在的差异进行估计，采用标准差的方式进行估计。geese算法性能的好坏 (Geese algorithm on sampled array signal processing, according to an estimate of the differences that exist on the array structure, estimated using standard differential manner. the geese algorithm performance quality)

Forgetting factor least squares method

利用matlab画出预测值与实际值的趋势图以及相对误差和绝对误差的走势图(Using MATLAB to draw the trend chart of predicted and actual values, and the relative error and absolute error trend chart.)