frequency_analyse

说明：  这是经典的复杂网络BA模型,可以画出度的分布图。(this is the classic model of complex netwok BA ，you can draw the distribution of degrees.)

提取原始信号的功率谱就可以看出在哪个频带的能量比较高，噪声主要集中在哪里，这样就可以专门分析那个频带的噪声(The power extracted the spectrum of the original signal can be seen in which frequency band energy is high, the noise is mainly concentrated in where, so that it can be devoted to the analysis of the frequency band of noise)

使用数学矩阵软件Matlab进行字符识别可视化编程(visual programming of Character recognition)

matlab开发环境下的语音波形的合成与识别，非常有用的一段程序的描述(Description waveform synthesis and voice recognition matlab development environment, very useful for some programs)

office 操作技巧包括matlab简单入门教程。可供老师教学参考之用。(office operating skills, including Getting Started tutorial matlab simple. Made available to teachers teaching reference.)

zenink 拟合，在光学面型仿真方面能真实的反映面型的微观形貌！(zenink fitting, simulation aspects of the optical face can reflect the real microstructure of face!)

field ii 仿真工具箱 用于超声成像 可以实现激励，聚焦，声场仿真等(field ii toolbox, can realize excitation, focus setup, sound field simulation, which can be used for ultrasound imaging)

PCA - SIFT matlab source code

用窗函数法实现了FIR数字滤波器的仿真，包括五种窗与低通，高通、带通、带阻四种类型的组和，可实现20种滤波器的设计(FIR filter design)

说明：  具有遗忘因子的最小二乘算法实现的一个案例，包含了仿真模型及M文件，且M文件配有详细的注释，通俗易懂。(Least squares algorithm with forgetting factor to achieve a case, including the simulation model and the M file, and the M file with detailed notes, easy to understand.)