shuiyinchuxuezhe

surf 特征提取 点特征 尺度不变性 黑森林矩阵(surf feature extraction)

求解Lambert问题。 输入：轨道上两个点的位矢R1、R2，以及从R1到R2所用的时间t(缺点是脉冲太大)。 输出：质点在R1端点的速度V1，质点在R2端点的速度V2. 此函数用于：在给定轨道上两个点的位矢R1、R2，以及从R1到R2所用的时间t。求解V1、V2。再调用前面的函数就可以确定轨道根数，及任意时刻质点的状态。(To solve the Lambert problem. Input: track two-point position vector R1, R2, and R1 to R2 used in the time t (The disadvantage is that the pulse is too large). Output: particle R1 endpoint speed V1, the particle in the R2 endpoint speed V2. This function is used: two points in a given orbit position vector R1, R2, and from R1 to R2 with the time t. Solve the V1 and V2. And then call the previous function can determine the orbital elements, and any moment of the particle' s state.)

实现了1999年huang等人提出的基本MNF算法，经验证可运行。(Huang et al 1999 MNF algorithm, proven run.)

比例积分控制，永磁同步伺服电机控制模型 运用Matlab/Simulink 建立的仿真模型(the model of PSWM control system)

基于随机搜索的PID参数优化程序，用于参数优化(PID parameter optimization program based on random search)

Here we have modelled a five-phase induction motor and we have applied DTC control technique to the machine

说明：  ex4_2 用MATLAB作巴特沃斯低通滤波器设计 ex4_3 用MATLAB作切比雪夫-1型低通滤波器设计 ex4_4 切比雪夫-2型低通滤波器设计 ex4_5 椭圆型低通滤波器设计 ex4_6 传递函数的模拟滤波器数字化 ex4_7 脉冲不变法简单实例 ex4_8 脉冲不变法巴特沃思低通滤波器设计 (ex4_2 using MATLAB for Butterworth low-pass filter design using MATLAB for ex4_3 Chebyshev-1-type low-pass filter design ex4_4 type-2 Chebyshev low-pass filter design ex4_5 elliptic low-pass filter design ex4_6 transfer function digitization of analog filters ex4_7 the same method is simple example of pulse-pulse unchanged law ex4_8 Butterworth low-pass filter design)

在WINDOWS环境下，使用MATLAB写的PCA代码，移植性好，对于做PCA的能方便使用！(In the WINDOWS environment, the use of PCA written in MATLAB code, portability, and for doing the PCA can easily use!)

对函数插值的理解与运用，重在掌握插值语句的使用与认识(On the understanding and use of the interpolation function, focusing grasp and understanding of the use of interpolation statement)

运用matlab编程，讨论杜芬方程的运动特性，从而进一步了解其非线性特性。(Using matlab programming, to discuss the motion characteristics of the Duffing equation, so as to further understand the nonlinear characteristics.)