59564376DAB

在频率域实现信号的频移，然后再变换回时间域的信号(In the frequency domain, the frequency shift signal is achieved, and then transformed back into the time domain signal)

说明：  吴恩达机器学习代码练习第二章----逻辑回归(Andrew.Ng Machine Learning exercise 2)

基于harris的角点检测，与ncc匹配，实现了图像的准确配准，有很高的应用价值(Based on harris corner detection, and ncc matching to achieve an accurate image registration, a high value)

wavelet code MATLAB-SPIHT_v1.0_02-12-08

说明：  MATLAB实现水印效果，有两个程序哦大家可以比较参考(MATLAB watermark effect, there are two procedures we can compare the reference O)

本程序是基于matlab编程的牛顿拉夫逊法潮流计算程序(The program is based on matlab Newton Ralph Gibson flow calculation method program)

3gpp release5中对TDD模式的详细描述(3gpp release5 TDD mode to a detailed description of)

utiliti applications

说明：  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.)

用matlab实现的一个最小二乘法的简单例子(Using matlab to achieve a simple example of least squares)