Lab9a-Interference-analysis

一种扰动观察法在光伏发电MPPT中的应用(A disturbance observation method in the application of the MPPT photovoltaic power generation)

快速弦截法进行工程整定，反复迭代直到满足工程要求(Secant method works fast tuning iteratively until meet the engineering requirements)

different Diversity techniques comparision in wi max

说明：  使用时打开此例题目录下pic中的图片，然后依次单击按钮“转”、“1”、“2”、“3”、“4”和“5”，就可以实现精确的车牌定位。(use this example to open directory pic of pictures, then click the button "turn", "1", "2", "3" and "4" and "5", can achieve precise positioning of the plates.)

扩频通信，从电磁波利用来看，与一般现有的常规通信方式完全不同。扩频通信利用伪随机编码把信息数据（窄带信号）的频谱进行扩展，形成宽带的低功率谱密度信号发射，使用不同的伪随机序列编码，不同通信用户可在同一频段、同一时间工作，互不影响或干扰极小地进行通信。(Spectrum, from the electromagnetic waves used term, and the general existing conventional means of communication is entirely different. Spread spectrum communication using pseudo-random code to the information data (narrowband signal) to extend the spectrum, the formation of low-power spectral density broadband signal transmission, using different pseudo-random sequence of coding, different communication users at the same frequency band, at the same time work, mutual does not affect or interfere with a very small way to communicate.)

shrodinger solving with matlab

根据IEEE标准算例给出的9节点网络图，利用MATLAB软件编程计算其节点导纳矩阵（含有解释）。当然，依据程序稍作修改可以求IEEE算例中的任意节点导纳矩阵。(Example is given according to the IEEE standard 9-node network diagram, using MATLAB software program to calculate the nodal admittance matrix (with explanation). Of course, some slight modifications according to the program can find examples of any IEEE nodal admittance matrix.)

虫口模型：某模型的分岔图，详细的计算过程，里面还附有结果图( Insect population model: a model bifurcation diagram insect population model: a model of the bifurcation diagram)

说明：  模拟退火算法例程解决优化求解问题，附有源代码(Simulated annealing algorithm routine to solve optimization problems, with source code)

优秀论文及配套源码。电压暂降是动态电能质量问题中最受关注的热点之一。大量新型电力电子设备的广泛使用对电网电能质量的要求越来越高，而且电压暂降在电网中又具有一定的传播性。因此，无论从电网还是用户都迫切需要对电压暂降进行研究和治理。对电压暂降的检测是解决电压暂降的前提条件，故本论文主要对电压暂降的检测方法进行研究。 本文分析了国内外短时电能质量扰动检测的研究现状，并着重讨论了短路故障、感应电动机启动和变压器激磁三种电压暂降扰动情况下电压暂降的特性；在此基础上选择了基于S变换的短时电能质量扰动检测方法，从S变换的结果S模矩阵及S复矩阵中提取出所需数据并以此来对各种扰动情况下的电压暂降的幅值、相位跳变、持续时间和谐波含量进行分析。仿真结果表明，该方法很好地实现了对电压暂降各特征量的检测。 (The voltage sag is one of most hot topics in dynamic electric energy problems. Masses of new power and electron facilities have been put into use widely, requiring a high quality of electric network and power, chiefly the voltage sag. Moreover, the voltage sag can spread in the electric network. So people have every reason to research and control the voltage sag. However, before developing the voltage sag, people have to detect it. On account of the above, this essay will chiefly focus on the detect methods of the voltage sags. In this paper, the status of the short duration power quality disturbance based on the different method are researched firstly, and emphasizes the characteristic of the voltage sag under the situation of the three kinds of voltage sag disturbances like the short circuit fault, induction motor start-up and transformer excitation. On the basis of the above, the short duration power quality disturbance detection method based on S transform is chosen. The complex m)