QPCCP

说明：  巴特沃思滤波器matlab程序，是本人提交的作业．(Butterworth filter Matlab process, I submit work.)

Simulink通信系统建模一书中的蓝牙调频通信系统仿真MATLAB源程序，包括word文档介绍，是非常好的通信系统仿真的学习参考资料(The book Communication Systems Simulink model Bluetooth FM communication system simulation MATLAB source code, including word document describes, is a very good communication system simulation study reference)

Implement the K nearest neighbor algorithm by your own instead of using available software. 2. Use K-fold cross validation to generate training and testing datasets. You should try different K values (3~8) to see how they affect your result. 3. Train the classifier using your training dataset, and test the classifier using your testing dataset. 4. Repeat the experiment (Step 2 and Step 3) 30 times. For each time, you need to record the training data accuracy and testing data accuracy. Finally, you can obtain the average training data accuracy and average testing data accuracy.

脏纸编码和Tomlinson-Harashima预编码，消除数据间干扰(Dirty paper coding and Tomlinson- Harashima precoding, eliminate the interference among the data)

matlab中求矩阵中n个绝对值最大的数(my english is very bad)

math program of loading and un loading of blade

QuIRK Multibody Dynamics Package

Matlab画平滑曲线的两种方法（ 拟合或插值后再用plot即可） 自然状态下，用plot画的是折线，而不是平滑曲线。有两种方法可以画平滑曲线，第一种是拟合的方法，第二种是用spcrv，其实原理应该都一样就是插值。下面是源程序。(You can then use the plot) Natural state, with the plot is a line drawing, instead of a smooth curve. There are two ways to draw a smooth curve, the first one is the fitting method, and the second is to use spcrv, in fact, the same principle should be that the interpolation. Here is the source.)

S-L头模型重建，X-CT图像重建算法的仿真研究(SL head model reconstruction, X-CT image reconstruction algorithm simulation)

极限学习机的回归拟合及分类——对比实验研究(Limit the return of learning machine fitting and classification-contrast experiment research)