chapter-4

主成分分析算法（PCA），这是一个外国人编写的，很具有参考价值(principal component analysis algorithm (PCA), which was prepared by a foreigner, it is very valuable reference)

使用matlab实现包络检波，解调；matlab与通信仿真；matlab教程；ds-cdma相关文章。(Using matlab to achieve the envelope detector, demodulator matlab simulation and communication matlab tutorial ds-cdma-related articles.)

智能控制理论中课程设计的一个实例，是bp-pid控制的一个针对非线性的matlab课程设计任务书和源代码。(Intelligent control theory in an example of curriculum design is a bp-pid control design for nonlinear matlab program mission statement and source code.)

快速傅里叶变换， 频谱的泄露，混叠误差实例的matla程序。(Fast Fourier Transform: In order to reduce the number of DFT calculations of a fast algorithm.)

超声声场的线性描述与仿真工具，可以作为超声系统的研究有用工具，根据不同的输入 ，得到不同的超声图像，验证自己的算法。(The linear ultrasonic sound field description and simulation tool that can serve as a useful tool for study of ultrasound systems, depending on the input, get a different ultrasound images to verify their algorithms.)

Matlab函数库，可以快速查找函数的意义。形式例如：errorbar 带误差限的曲线图(Matlab library, you can quickly find the significance of the function. For example: errorbar ：form with error limit curve)

使用MATLAB实现FIR滤波器设计，内含详细代码和原理(FIR filter design using MATLAB implementation, containing detailed codes and principles of)

说明：  采用小波包变换去除脉搏波的基线漂移和公平干扰 效果较小波变换更好(Wavelet packet transform to remove baseline drift and pulse wave interference effect of smaller transform fair better)

说明：  详细的介绍matlab的使用，适合初学者使用~ 一本好的教材~(The detailed introduction of matlab use, is suitable for beginners use ~ A good textbook ~)

transmissivity of a microcavity resonator in a DBR stack，and emission pattern of different incident angles