qiuticiyichang

对于传递函数为G=1/(s*s+2*&*s+1)归一化二阶系统，制作一个能绘制该系统单位阶跃响应的图形用户界面。本例演示：（A）图形界面的大致生成过程；（B）静态文本和编辑框的生成；（C）坐标方格控制键的形成；（D）如何使用该界面。(for the transfer function of G = 1/(s* s* 2)

matlab宝典第4版光盘源码文件，很好的学习资料(4th Edition CD Collection matlab source file, a very good learning materials)

一个简短的灰色模型计算仿真程序，下载直接到matlab环境下运行即可(a short gray model simulation program, downloaded directly to the Matlab environment can be run under)

基于natlab的遗传算法的源代码，可以用于遗传算法的优化仿真分析，在解决优化计算问题的时候非常重要。(a program of matlab for GA)

matlab时间序列分析工具箱，各种时频分析方法的matlab源码。(matlab time series analysis toolbox, various time-frequency analysis methods matlab source.)

I have thoroughly study the basic of image compression techniques. From that I have selected SPIHT algorithm for my research work. I have implemented on image compression for gray images using SPIHT algorithm. Image compression is implemented using this algorithm has better result over the previous result on gray images and also improved PSNR value high but on other side low result on compression ratio.

I post myplotyy.m for advanced plotyy function of MATLAB. It easily plot 2-axis plot using attached myplotyy.m.

earth cordinats Calc_Azimuth_Elevation

These are som documents about the Civil works. For more information, pls. contact me.

说明：  空间计量 elhorst_model（带中文解释）(Spatial metrology elhorst_model (with Chinese interpretation))