logistics

时间序列模型和预测的MATLAB代码，包含参数的估计方法，数据分布的检测，模型预测的源码(Matlab code for time series modeling and forecast )

kalman滤波函数，保存到同一目录即可直接调用函数。(kalman filter)

采用遗传算法对于加工问题的排序,使其最快.(The use of genetic algorithm to sort the problem for the processing to make it the fastest.)

对数据进行卷积运算，只要导入需要处理的数据，即可运行程序，并给出计算结果图 (Convolution data, the data need to be processed as long as the import, you can run the program, and the results are given in Fig.)

Butter 函数的应用于低通滤波器，对应的仿真图形与代码(Butter function applied to low-pass filter corresponding to the simulation graphics and code)

光伏电池阵列输出功率受光照强度和温度变化的影响，因此最大功率点跟踪（MPPT）技术广泛应用于光伏系统中。在所有最大功率点(MPP)控制策略中，扰动观察（P&O）MPPT算法因易实现被广泛应用，然而它的缺点是在稳定工作状态下工作点通过MPP 时会导致能量振荡损耗，并且在光照强度或温度发生突变时表现较差的动态响应。在本文中，提出一种改进型变步长扰动观察MPPT 算法，此方法依据工作点动态调整步长变化，与传统固定步长方法比较，本文提出的方法能有效地提高MPPT 速度和转换效率，通过仿真和实验结果分析，验证了此改进算法的可行性。(PV array output power by light intensity and temperature changes, so the maximum power point tracking (MPPT) technology is widely used in photovoltaic systems. In all the maximum power point (MPP) control strategy, the perturbation and observation (P & O) MPPT algorithm because easy to implement is widely used, but its disadvantage is the steady-state operating point by the MPP causes energy oscillations loss, and in the light intensity or temperature mutated poor performance dynamic response. In this paper, we propose a modified variable step size perturbation and observation MPPT algorithm, this method is based on dynamically adjusting the operating point changes in steps, with the traditional fixed-step methods, the proposed method can effectively improve the speed and efficiency MPPT, The simulation and experimental results verify the feasibility of this algorithm.)

说明：  倒立摆数学模型及分析及建模叙述，主要是过程(Pendulum mathematical model and analysis)

粒子群算法求函数最小值的例程,理解粒子群算法的基本原理.(get min of F(x) by Particle Swarm Optimization)

读入xls文档，完成对成绩的排序，然后重新写回xls。特点就是 ，可以输入不同的排序标准，完成不同的排序。(Read xls document, complete results of the sort, and then re-write back to xls. Feature is that you can enter a different sort criteria, the completion of a different sort.)

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