SHIXUN

说明：  FFT的使用，说明了在MATLAB中FFT函数的使用方法，(The use of FFT, shows the FFT function in MATLAB to use,)

期望最大化算法的ppt，很不错，个人用了，很受益啊。。。(EM algorithm)

平移数组元素的实例程序。来自编程珠玑。非常有用。(rotate array， sample code from programming pearls.)

利用非线性控制完成光伏并网逆变器的设计，设计中采用模糊控制和反步法，介绍很好。(Using nonlinear control to complete the design of the photovoltaic (pv) grid inverter, adopted in the design of advanced reverse moves, the introduction is very good.)

Sobel, Prewitt, roberts edge detection implemented by matlab

this book introduces some basic theories about radar and uses matlab simulating some of them.

机器人模型构建，运用MATLAB中机器人工具箱进行构建。(Robot modeling, robot using MATLAB toolbox to build.)

An implementation of Unscented Kalman Filter for nonlinear state estimation. (Nonlinear state estimation is a challenge problem. The well-known Kalman Filter is only suitable for linear systems. The Extended Kalman Filter (EKF) has become a standarded formulation for nonlinear state estimation. However, it may cause significant error for highly nonlinear systems because of the propagation of uncertainty through the nonlinear system. The Unscented Kalman Filter (UKF) is a novel development in the field. The idea is to produce several sampling points (Sigma points) around the current state estimate based on its covariance. Then, propagating these points through the nonlinear map to get more accurate estimation of the mean and covariance of the mapping results. In this way, it avoids the need to calculate the Jacobian, hence incurs only the similar computation load as the EKF. For tutorial purpose, this code implements a simplified version of UKF formulation, where we assume both the process and measurement noises are additive to avoid augment of state and a)

这是一个单相并网逆变器滑模变结构控制，采用滑模变结构控制方法对其进行稳定性控制，并实现有源阻尼控制。(This is a single-phase grid-connected inverter sliding mode variable structure control, using sliding mode variable structure control method to its stability control, and to achieve active damping control.)

Matlab在复变函数中的应用，介绍留数的概念及Matlab的实现；介绍在复变函数中有重要应用的Taylor展开(Matlab in the application of complex variable functions, introduce the concept and the residue Matlab realization describes the complex function has important applications in the Taylor expansion)