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paper based on pca and image fusion

Heat Equation with variable coefficients. Solution of the heat equation using point gauss method

利用matlab写的较基本的arnold加密与相应解密算法，其中的key可以任意改之，但加密次数不宜太多，最好在100次以内(Use matlab to write the basic Arnold encryption and decryption algorithm, one of the key can be arbitrary change, but the number of encryption shoulds not be too much, best within 100 times)

calculates the simulink labs and implemented in simulink matlab environment

说明：  橈性單節機械臂PD與順滑模態控制器設計 (PD radius of a single arm and the sliding mode controller design )

matlab 蚁群算法 源程序，里面有多个m文件(ant colony algorithm matlab source code, there are several m-files)

矢量控制是目前交流电机的先进控制方式，一般将含有矢量变换的交流电机控制都称 之为矢量控制，实际上只有建立在等效直流机模型上，并按转子磁场准确定向的控制，电机才能获得最优的动态性能。 矢量控制的基本思路是以产生相同的旋转磁动势为准则，将异步电机在静止三相坐标系上的定子交流电流通过坐标变换等效成同步旋转坐标系上的直流电流，分别加以控制，以达到直流电机的控制效果。(Vector control is an advanced control method of AC motor at present. Generally, vector control is called vector control. In fact, only based on the equivalent DC motor model and accurately oriented control according to the rotor magnetic field, can the motor obtain the optimal dynamic performance. The basic idea of vector control is to generate the same rotating magnetomotive force as the criterion. The stator AC current of asynchronous motor in the static three-phase coordinate system is converted into DC current in the synchronous rotating coordinate system by coordinate transformation, and then controlled separately to achieve the control effect of DC motor.)

截取语音处理的图片设计滤波器，并对被噪声污染的语音信号进行滤波，画出滤波前 后信号的时域波形和频谱，并进行比较分析； (The statics is very good for the semaster)

直线阵采用切比学夫加权控制主旁瓣比，抑制噪声。此程序基于常规波束形成实现，程序思路清晰，适合刚接触阵列信号处理的人参考。(Linear array by cutting the right of control over the primary school laid upon the side-lobe ratio, noise suppression. This program is based on conventional beamforming implementation process with clear ideas for people new to reference array signal processing.)

说明：  雅可比、塞德尔和SOR迭 代法的原理。代法的原雅可比、塞德尔和SOR迭代法的原理。理。(Jacobian, Seidel and SOR Diez Jacobian, Seidel SOR iteration method and the principle. On behalf of the original law Jacobian, Seidel SOR iteration method and the principle. Jimmy.)