initialize

说明：  四旋翼无人机是一种可以被遥控也可以在无人为控制的状态下执行预定任务的飞行器，与传统直升机相比四旋翼飞行器的机械结构简单，且具有高精度，灵活精度以及较低成本的特点，被广泛用于军事侦察，农艺播撒、快递派送、摄影工作等领域。四旋翼飞行器自身具有欠驱动、多变量、非线性等特性，在外界的噪声干扰情况下，增加了四旋翼无人机的不稳定以及控制系统的设计难度。所以对四旋翼飞行器的位姿控制的研究，可以开拓科研人员对控制算法以及滤波算法的认知，具有重要的研究意义。(Four-rotor UAV is a kind of aircraft that can be controlled remotely or perform scheduled tasks without human control. Compared with traditional helicopters, the Four-rotor UAV has simple mechanical structure, high precision, flexible precision and low cost. It is widely used in military reconnaissance, agricultural broadcast, express delivery, photography and other fields. Four-rotor UAV has the characteristics of under-actuation, multi-variable and non-linearity. Under the circumstance of external noise, the instability of Four-rotor UAV and the difficulty of control system design are increased. Therefore, the research on attitude control of Four-rotor aircraft can broaden the knowledge of control algorithm and filtering algorithm for researchers, and has important research significance.)

说明：  计算3阶通计量的程序，程序可以包含在你自己的工程中，做高阶统计必备！(Calculation 3-order through measurement procedures, procedures can be included in your own projects, so higher-order statistics must have!)

利用列维（levy）法进行系统辨识，主要用于参数辨识(The use of Levy (levy) system identification method, mainly used for parameter identification)

光伏并网逆变器控制技术的研究,详细分析了并网的技术难点和技术攻关。(Research on photovoltaic grid connected inverter control technology, a detailed analysis of the technical difficulties and technical problems of grid. )

在matlab中读取.dat文件后，利用函数polyfit和polyval进行拟合作图(In matlab to read. Dat file, use the function polyfit and polyval cooperation plan for the proposed)

详细的叙述了使用Matlab使用遗传算法的过程，并使用了三种不同的方法(This document gives the describption of GA and implement it with Matlab.Furthermore, it consists of three different menthods and each one has detail steps)

关于信号处理方面的经典书籍。看了之后很有收获，推荐给大家。(On signal processing aspects of the classic books. After the harvest looked likely to recommend to everyone.)

Adobe Photoshop toolbox.Version 1.0 13-Dec-2006。photoshop中的matlab工具包，包括54个M文件，能够实现在matlab中调用photoshop的操作函数，并将处理结果传回matlab.也可以将matlab工作空间里的图像矩阵传送到photoshop中进行处理并动态返回结果. 该工具包从CS4中提取得到(其他版本没有测试过！)，安装时直接解压缩到photoshop文件夹下，按照压缩包中的pdf说明文档在matlab中添加路径后即能够使用，并能够在help中看到一个photoshop toolbox.(Adobe Photoshop toolbox.Version 1.0 13-Dec-2006. photoshop in matlab toolkit, including 54 M files, photoshop function call operation can be achieved in matlab, and the results returned matlab. too matlab workspace in the image matrix can be transferred to photoshop for processing and dynamic returns the result. toolkit extract obtained from CS4 (other versions not tested!), unzip the installation directly to photoshop folder, according to the compressed package in matlab pdf documentation can add the path after use, and can see in the help of a photoshop toolbox.)

熵权计算程序,本程序主要用于熵权的计算，可以直接使用。(The entropy weight calculation procedures, the procedures used for the calculation of the entropy weight can be used directly.)

Closed Form MLE Matlab