DSP01

function [ret,x0,str,ts,xts]=s4(t,x,u,flag) s4 is the M-file description of the SIMULINK system named s4. The block-diagram can be displayed by typing: s4. SYS=s4(T,X,U,FLAG) returns depending on FLAG certain system values given time point, T, current state vector, X, and input vector, U. FLAG is used to indicate the type of output to be returned in SYS.

说明：  processing and database for sar images

It implements an IIR filter in distributed arithmetics

利用matlab实现卡通图的画法，是一个比较有意思的实现方法(Using matlab to achieve cartoons of the painting, is a more interesting way to achieve)

here is fantastic iso clustering code which i test it frequently and find it satisfactory. it does k maen clustering in two dimensional data.

使用小波变换提取信号的特征值，实现故障信号的视频分析，利用matlab进行仿真，证明判据的真实可信(wavelet based fault line detection)

Designing various filetrs using simulink

经验模式分解改进代码，基于经验模式分解的一种改进 经验模式分解 matlab(Empirical Mode Decomposition improve code)

设有连续时间周期信号，它的周期为T，角频率，且满足狄里赫利条件，则该周期信号可以展开成傅里叶级数，即可表示为一系列不同频率的正弦或复指数信号之和。(With continuous time periodic signal, its period is T, the angular frequency, and to meet the Diliheli conditions, the periodic signal can be expanded into a Fourier series, can be expressed as a range of different frequencies of sinusoidal or complex exponential signal and.)

数字图像处理课程上机实验3_Matlab邻域平均法 和中值滤波法（matlab代码全）(Digital Image Processing courses on experiments 3_Matlab neighborhood average and median filtering method (matlab code full))