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This file implement Gda algorithm for dimension reduction and clustering techniques. Dimension reduction, Clustering.

1. 给一段原始的语音信号（可以是自己录制的一段语音），加上一频率为3.8kHz的高频余弦噪声和频率为3.6kHz的高频正弦噪声（幅度自己可以选择），用窗函数设计一滤波器（要求最小阻带衰减为50dB）对加噪后的语音信号进行滤波，画出滤波器的频率响应曲线，画出滤波前后的时域图和频谱图。 需要用到的函数： fir1 用窗函数设计FIR滤波器的函数 2. 用GUI设计一界面（如图1所示）完成如下功能： 1） 输入一语音信号，画出语音信号的时域图和频谱图； 2） 对语音信号加噪处理，画出加噪后的时域图和频谱图； 3） 给定滤波器的性能指标，采用几种不同的方法设计滤波器对加噪信后进行滤波，画出各滤波器的频率响应曲线，画出滤波后的时域图和频谱图。 (1. to some of the original speech signal (which can be a voice you record yourself), plus a cosine frequency of 3.8kHz frequency noise and frequency of 3.6kHz frequency sinusoidal noise (in the range that they can choose), with a window function to design a filter (requires a minimum stop band attenuation is 50dB) after adding noise to the speech signal is filtered, the filter frequency response curve to draw, draw diagrams and time-domain spectrum before and after filtering. Need to use the function: function fir1 with window function design FIR filter design 2. Using a GUI interface (Figure 1) complete the following functions: 1) an input speech signal, the speech signal in the time domain to draw graphs and spectrum 2) adding noise to the speech signal processing, draw diagrams and time-domain plus noise spectrum after 3) to set the filter performance, using several different methods designed to filter letter after adding noise filtering, draw the frequency response curve of each )

此程序用来求解水膜蒸发过程温度分布，蒸发率等参数。(This program is used for numerically calculating the temperature distribution and evaporation rate during the evaporation of a water film.)

阵列信号处理的高分辨率估计，有CDF三角函数曲线/三维曲线图，能量熵的计算，Matlab实现界面友好，结合PCA的尺度不变特征变换(SIFT)算法，调试通过可以使用。( High-resolution array signal processing estimates, There CDF trigonometric curve/3D graphs, Energy entropy calculation, Matlab to achieve user-friendly, Combined with PCA scale invariant feature transform (SIFT) algorithm, Debugging can be used.)

利用GAS软件和Matlab编程实现空间统计分析,实现空间统计的过程(Use of GAS software and Matlab programming spatial statistical analysis, the process of spatial statistics)

说明：  无线传感器网络Leach分簇算法源代码，用matalb仿真的，完全能跑出来(wireless sensor network )

直流潮流计算程序（作者FX）提供7种控制方式，导纳矩阵形成有部分问题，小弟只是想学习学习高手的源代码，代码冗杂请见谅(the code of DC—powerflow caculation by FX provide 7 kind of controll mode，but there are some problems in the formation of Y matrix.please let me download some code by good operator )

Newton s method for solving system of nonlinear equations.

MATLAB初学入门者使用教程，共4部分。第1章概述1.rar第第2章语法.rar第3章SIMULINK.rar第4章建模.rar (MATLAB beginner beginners tutorial 4. Chapter 1 Overview 1.rar 2 syntax the Rar 3 Chapter SIMULINK.rar of Chapter 4 Modeling. Rar)

matlab code differential Algebraic Equation