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periodogram in a white noice

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.)

this is a 2d fdtd in matlab

遗传算法解决5种多旅行商问题（mtsp）的matlab程序 分别为以下5中情况： 1.从不同起点出发回到起点（固定旅行商数量） 2.从不同起点出发回到起点（旅行商数量根据计算可变） 3.从同一起点出发回到起点 4.从同一起点出发不会到起点 5.从同一起点出发回到同一终点（与起点不同）(5 kinds of genetic algorithms to solve multiple traveling salesman problem (mtsp) matlab program 5, respectively, the following situations: 1. Back to the starting point a different starting point (TSP fixed amount) 2. Back to the starting point a different starting point (TSP amount calculated variable) 3. Starting the same starting point back to the beginning 4. Starting the same starting point to the starting point is not 5. Starting the same starting point back to the same end point (with different starting points))

有关Matlab Simulink的详细讲义(The notes on Matlab Simulink)

说明：  小波分解 语音降噪 例子 正常运行 matlab(Wavelet decomposition speech denoising example normal operation)

source code of mobile modelling channel with matlab

Matlab入门手册，解压后是word版本。适合初学者学习入门(Matlab Getting Started manual, after extracting word version. Suitable for beginners learning portal)

Kalman滤波小程序，可对kalman滤波进行简单的演示说明。(Kalman filtering of small procedures, can be simple kalman filtering demo description.)

This file gets the satellite coordinates in the orbital plane and computes its coordinates in the cartezian system