runge-kutta-of-2stage-4th-order

空间平滑算法估计相干信号DOA，还有基于此的改进算法，大家可尝试(DOA estimation)

交流伺服系统中的死区效应分析与补偿分析了逆变器的死区效应产生的原因及其对交流伺服系统控制性能产生的影响,指出死区补偿的关键 在于电流相位的获取,为了克服实际系统中电流零点的模糊性,提出了一种基于两相静止坐标系下的前馈死 区补偿方法. 该方法通过对三相输出电流一个周期内补偿电压进行傅里叶变换,发现仅需补偿1 ,5 ,7 次谐波 分量即可消除死区效应. 仿真和试验结果验证了这种方法的正确性和可行性.(AC servo system analysis and compensation of dead time effect of the inverter dead time effect causes the impact of the control performance of the AC servo system, and pointed out that the dead time compensation, the key lies in the current phase of the acquisition, in order to overcome the practical zero of the current ambiguity of the system is proposed based on the two-phase stationary coordinate system under the feedforward dead-time compensation method. by the offset voltage of the three-phase output current cycle Fourier transform is found only compensation 1, 5, 7 harmonic components to eliminate the dead time effect. simulation and experimental results verify the correctness and feasibility of this approach.)

传递对准中的挠曲和柑臂计算,该代码只是个计算的例子,提供方法(Transfer Alignment and Gan arm deflection calculation, the code is just a calculation example, provide a way)

用MATLAB实现欧式距离，很简单的例子，一学就会。其中，还求出了距离的最小值。希望大家可以相互学习一下。(Very simple example, a study will Euclidean distance, using MATLAB. Wherein the minimum distance is obtained. I hope we can learn from each other.)

说明：  step response of control system

对采集来的图像进行预处理，去噪、滤波、提取出边缘的图像。(The collected image preprocessing, noise reduction, filtering, extracting the edge image.)

说明：  这是一本关于系统辨识很好的书本，对初学者很有帮助，是由我们学校长江学者编著的，外面都没有，拿出来分享(This is a very good book on system identification, very helpful for beginners, is edited by our school Changjiang Scholars, and the outside did not work out to share)

说明：  MATLAB实现Ovsf扩频解调，WCDMA(MATLAB implementation Ovsf Spread)

PID+genetic algoritm

图像认证技术，源码最新下载自美国名校The University of Texas at Austin的Brian L. Evans教授的实验室网站 (Matlab programs for image authentication downloaded from Professor Brian L. Evans in University of Texas at Austin in USA)