ButterWorth

Sudoku solver is the simplest application to solve sudoku table, so this Application is GUI. It may has many bugs.

说明：  利用matlab编程求解非线性方程组,用于逆运动学求解(Programming using matlab solving nonlinear equations for the inverse kinematics)

主要用途是对抗多径衰落。由于多径衰落的存在，使得同一个帧由于路径不同，到达用户端的时延有先有后。在相关的频域上的会造成子载波之间的相互干扰，影响 性能。另外，由于有了循环前缀，使得IFFT FFT操作把原来的线性卷积变成循环卷积，大大简化了相应的信号处理复杂度(The main purpose is to fight against multipath fading. Due to the presence of multipath fading, the first after they have the same frame different paths to reach the client delay. Would cause mutual interference between sub-carriers in the frequency domain, affecting performance. In addition, thanks to the cyclic prefix, so IFFT FFT operation to the linear convolution of the original into a circular convolution, greatly simplifying the corresponding signal processing complexity)

the fuction performs thresholding to the eye images. this function can be used in implementing daugman algo for iris localization.

模式识别中的K均值算法，对数据进行归类。程序中，使用了二维数据进行分类。通过修改参数，也可以支持三维或是更高维数的分类。(the K-means algorithm for Pattern Recognition )

随便编写的，我刚学matlab图像处理，这是我的学习程序(Just write, I just learning matlab image processing, this is my learning process)

通过pca找点云主方向，确定新坐标，然后将旧坐标点投影新坐标(Coordinate transformation using Principal Component Analysis)

说明：  现代控制理论实验课 matlab倒立摆仿真代码和动画演示 使用matlab的倒立摆建模和仿真设计 使用了状态反馈控制器设计闭环反馈控制系统 实现了动画演示 文档说明：（中文字符显示某些问题，后续更改，系统的simulink构建很简单，这里没有注意到） 系统分析文件夹 .m输入为加速度的情况下的开环系统.m文件 F .m输入为力开环系统的m文件 State_FeedBack_controller.m输入为加速度的闭环系统的m文件 动画演示文件夹 sys.m生成整个控制系统的s函数 pendan.m显示动画的s函数 dh.mdl最终的动画倒立摆simulink的建造(Modern control theory experiment course Matlab inverted pendulum simulation code and animation demonstration Modeling and simulation design of inverted pendulum using MATLAB The closed-loop feedback control system is designed by using the state feedback controller The animation demonstration is realized Document description: (some problems of Chinese character display, subsequent changes, the system's Simulink construction is very simple, not noticed here) System analysis folder Open loop system. M file with. M input as acceleration The input force of the open loop F.M system State_ FeedBack_ The controller. M input is the m file of the closed loop system with acceleration Animation folder Sys. M generates the s function of the whole control system Pendan. M s function for displaying animation dh.mdl The construction of the final animation inverted pendulum simulink)

求图形图像梯度的程序，方便简洁，轻松解决，效率高(make it)

卡尔曼滤波器的三种设计方法，在信号估计中有很好的表现，都调试通过了。(Three Kalman filter design, signal estimation in a good performance, all debugging adopted.)