xianxingnihe

进行图像的角点提取，方法是先通过Harris方法选初始点，然后对初始点进行Forstner算法进行筛选，最后得到图像角点。(The image of the corner detection, the method is to first select the initial point through the Harris method, and then point Forstner initial screening algorithm, the resulting image corner.)

Matlab 操作技巧与常用函数。帮助Matlab初学者迅速掌握Matlab环境下编程技巧。(Matlab operating skills with commonly used functions. Help the Matlab environment for beginners to grasp the Matlab programming skills.)

拟牛顿法和最速下降法(Steepest Descent Methods)一样只要求每一步迭代时知道目标函数的梯度。通过测量梯度的变化，构造一个目标函数的模型使之足以产生超线性收敛性。这类方法大大优于最速下降法，尤其对于困难的问题。另外，因为拟牛顿法不需要二阶导数的信息，所以有时比牛顿法(Newton s Method)更为有效。如今，优化软件中包含了大量的拟牛顿算法用来解决无约束，约束，和大规模的优化问题。(The quasi-Newton method and the Steepest Descent Methods only require that each step iterations know the gradient of the objective function. By measuring the change of the gradient, constructing a model of the objective function is sufficient to produce superlinear convergence. This method is much better than the steepest descent method, especially for difficult problems. In addition, because the quasi-Newton method does not require information on the second derivative, it is sometimes more effective than the Newton s Method. Today, the optimization software contains a large number of quasi-Newton algorithm used to solve the unconstrained, constraint, and large-scale optimization problems.)

熟悉matlab的人都会很清楚matlab中的feval()函数没法对匿名函数进行运算，当然更不可能执行当前路径之外或者说搜索路径之外的函数。还有eval只能执行字符串命令。 9 q2 u8 e" L& Y, E Z8 {然而evalf解决了上面的所有问题 (Matlab person familiar with the very clear matlab in feval () function can not be anonymous function of computing, of course, impossible to implement outside of the current path or the path outside the search function. There can only run eval command string. 9 q2 u8 e L )

说明：  进行哈夫曼编码，并元素的码字，平均码长等(for Huffman coding, and elements of code words, the average yards long)

说明：  此程序实现构造Daubechies小波基,求解小波尺度函数离散整数点的值和实现尺度函数经伸缩后的离散值采用双尺度方程求解小波基函数(The Program for Daubechies wavelet construction, solving the discrete wavelet scaling function and implementation of an integer point value after scaling function by the expansion of discrete values using the two-scale wavelet basis function equation)

说明：  论文：MIT_BIH心率失常数据库的识读及应用.pdf(fail to translate)

倒立摆 MATLAB 模糊pid控制以及仿真(Inverted pendulum MATLAB fuzzy pid control)

average dithering matlab

小波包分解提取信号动力特性 能量特性 供大家参考(Wavelet packet analysis to extract the characteristic frequency of the vibration signal, and the calculation of the energy spectrum analysis)