Exercise4

声信号指标分析,包含声压级和频谱分析，算法和具体程序(index analysis for sound signal，including the sound pressure and frequency analysis)

DC Defect Correction Method. X = DC(A,B) attempts to solve the system of linear equations A*X = B for X. The N-by-N coefficient matrix A must be square and the right hand side column vector B must have length This uses the defect correction method until default convergence criteria or MAXIT iterations is reached.

matlab processing and realization of the voice, very useful

说明：  text detection traffic panel

绘制莱斯分布，本程序简单明了，并且可以修改参数(Draw Rice distribution, this procedure is simple, and you can modify the parameters)

BP Network ，实现对BP网络的编程，采用matlab实现，基本的BP网络(BP network )

matlab结构数组观测程序 可在Gui看结构数组的内容(Matlab structure array observation process will be Gui look at the contents of the array structure)

说明：  基于传递矩阵的方法，计算转子动力学系统临界转速及振型(Critical Speed and Vibration Mode of Rotor Dynamics System Based on Transfer Matrix Method)

粗糙集中信息上与条件信息熵的计算代码程序，使用matlab编写而成的(The information entropy and cond entropy of rough set calculation code, and the use of matlab program,and that is all . )

iir滤波器设计,包括 脉冲不变法和双线性变换法等等等(iir filter design)