chap03

短时傅立叶变换测频，可对复信号处理。界面设计好，用户交互方式编程。(STFT frequency measurement can be complex signal processing. Interface design, the user interactively programming.)

exploring graph layout

matlab实现QPSK的误码率的仿真和分析，在此程序中，通过运行调试实现了基础的功能(Matlab QPSK ber of simulation and analysis on this program, through the operation commissioning realized the function of the foundation )

simulink for pid with state space

对采集到的振动信号进行EMD分解，得到一系列频率不同的经验模态函数IMF分量，可以用来滤波和提取原信号的特征。(The collected vibration signals of EMD, get a series of different frequency components of IMF empirical mode function can be used to filter and extract features of the original signal.)

电力系统中的IEEE4机2区域节点系统图及相应的参数，并且有利用PSCAD/EMTDC搭建的系统模型。(Power system IEEE 4-machine 2-area system diagram and the corresponding parameters, and there use of PSCAD/EMTDC to build the system model.)

快速fft的自编程序和DHT的程序，帮助理解FFT的原理和DHT的原理，进一步加快算法研究做好准备(Quick fft of self procedures and DHT program to help understand the principles and DHT FFT principle, ready to further accelerate the algorithm)

距离正规化水平集演化及其应用到图像分割程序代码，李純明开发。(Distance Regularized Level Set Evolution and Its Application to Image Segmentation )

image quality measures

说明：  matlab软件的使用基础知识3.关于矩阵计算，特征值，特殊矩阵的生成等等(matlab basic knowledge of the use of software 3. on the matrix, the characteristic value, the generation of a special matrix, etc.)