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说明：  螺旋桨PID控制 In response to constant pressure to design more efficient, faster, smaller, and better systems, engineers are constantly looking for ways to improve existing designs or replace them with better ones. Facing large fuel costs, the aerospace industry in particular has been researching alternative designs to increase fuel efficiency and performance. One such alternative is the development of reconfigurable aircraft wings. These wings would be able to adapt to the current environment increasing lift or reducing drag when appropriate. (PID control of the propeller In response to constant pressure to design more efficient, faster, smaller, and better systems, engineers are constantly looking for ways to improve existing designs or replace them with better ones. Facing large fuel costs, the aerospace industry in particular has been researching alternative designs to increase fuel efficiency and performance. One such alternative is the development of reconfigurable aircraft wings. These wings would be able to adapt to the current environment increasing lift or reducing drag when appropriate.)

利用MATLAB实现变长自适应滤波，实现语音增强的功能(MATLAB realize the use of variable length adaptive filtering, realize the function of speech enhancement)

matlab里面典型的图论工具箱使用例子.对于一般的同学学习,是个较好的入门程序.(matlab toolbox inside the typical examples of the use of graph theory. For the average student learning, is a good entry procedures.)

the code file that is uploded is harmfreq file

标准卡尔曼滤波对船的航线进行滤波处理，方便导航定位。(Standard Kalman filter for filtering routes boat handling, easy navigation and positioning.)

这真的是一本很好的关于structs的书籍(a very good book related to structs)

说明：  汉明码Hamming Code 编程实例(Hamming code Hamming Code Programming Example)

用matlab制作的一个有趣程序，内容为打气筒打气球的动画演示。(Using matlab produced an interesting program, says playing balloon pump animation.)

Determine the target s ECEF position based on up to 4 sensor s measurements. The sensor has range, bearing, and elevation data. The measurements were used for Kalman filter processing.

matlab系统辨识实现，《机械系统动态分析及数学建模》（温熙森主编）练习 含详细说明 (Matlab System Identification realized, "Dynamic Analysis of Mechanical Systems and the Mathematical Modeling" (Wen Xisen editor) containing detailed description practice)