jiaoliutiaosu

用FDTD建立二维模型，再用matlab实现层析成像，显示目标电磁特性(diffraction tomography)

说明：  输入信号为谐波信号，用brug算法运算线性模型系数。(Input signal for the harmonic signal, using brug coefficient linear model algorithm.)

Is a script to integrate

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.)

Krylov subspace作为一种迭代方法，在求解非线性方程组方面发挥巨大作用，这个ppt和大家分享(Krlov subspace method)

GPS数据捕获matlab源代码，用于对接收到的GPS数据进行捕获运算。(GPS data capture matlab source code for the received GPS data capture operations.)

一种fourier的快速变换，计算结果比matlab里的fft节省一半空间(A Fourier transform of fast, the calculation results of FFT than matlab save half space)

这是一个为友人所写的小程序, 实现了分段模糊查询, 网页生成等小功能! (This is a small program written by a friend, realize a sub-fuzzy query, the page to generate small features!)

一种传输线线受雷击后的计算方法，很使用的，做毕业设计必看(a transmission line by line after the Lightning calculation method is used, do graduate design Watchable)

matlab例子 对于初学者来说很好用，或者用于学习编程 物理 等其他学科，这是一些很好的例子(matlab example)