xiti10-3

说明：  matlab对巴特沃兹滤波器的仿真（1）(matlab simulation of the Butterworth filter (1))

粒子群求解无约束优化问题，包括基本粒子群算法，改进的粒子群算法，还有基于自然选择的粒子群算法和模拟退火的粒子群算法(Swarm for unconstrained optimization problems, including particle swarm algorithm, the improved particle swarm optimization, as well as natural selection based on PSO and simulated annealing particle swarm algorithm)

用matlab实现了指纹的预处理以及特征点的提取。(Using matlab fingerprint preprocessing and feature point extraction.)

小波阈值去噪，含不同分解层次、输入信噪比、阈值、阈值函数去噪功能的比较。原始信号为高斯脉冲(Wavelet threshold denoising with different decomposition level, the input SNR threshold comparison of the threshold function denoising function. The original signal for the Gaussian pulse)

说明：  matlab-simulink双馈风机的仿真模型(matlab-simulink DFIG simulation model)

分数阶傅里叶变换(Fractional Fourier Transform, FrFT)，实现线性调频(LFM)信号的参数估计(调频斜率和初始频率)。由粗到细搜索分数阶傅里叶变换的阶数。需要到网上自行下载一个工具函数frft.m.(It is about estimationg the frequency modulation rate and initial frequency of linear frequency modulation (LFM) signal using the fractional Fourier transform (FrFT).It need a function frft.m which could be found in the internet.)

数值计算方法 龙格现象+解决（切比雪夫点的定义）(Numerical method Runge phenomenon+ Solution (Chebyshev point definition))

example simulation s of analysis of electrical machinery and drive systems - Pual C. Krause - Ex6

function of autoassociative neural network

说明：  例子群优化的一个的简单小程序，是利用matlab写的。(Swarm optimization example of a simple small program, was written by matlab.)