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说明：  用DFT计算连续信号的谱 通过应用 DFT 进一步加深对离散信号 DTFT 和 DFT 的概念及其相互关 系的理解。 =利用 DFT 计算连续周期信号的频谱(DFT calculations using a continuous signal by applying the DFT spectrum of discrete signals to further deepen the concept of DTFT and DFT and their mutual understanding of the relationship. = DFT calculations using a continuous spectrum of periodic signals)

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.)

PLS部分最小二乘工具箱,基于SVPWM的三电平逆变的matlab仿真，遗传算法无功优化。( PLS PLS toolbox, Based on SVPWM three-level inverter matlab simulation, Genetic algorithm based reactive power optimization.)

Arryindexing in matlab r2009

对钢结构危险部位自动进行疲劳分析的matlab程序代码，好用(auto fatigure analysis program based matlab)

一种基于并联式恒模阵和DOA的同信道信号接收算法(A co-channel signals received constant modulus algorithm based on a parallel array and the DOA)

ofdm的盲同步，很好的文章，需要的就看看吧(OFDM Blind Carrier Offset Estimation ESPRIT)

该压缩包实现二维的DCT变换和逆DCT变换，可以对图像做DCT变换和逆DCT变换，实现非常简洁，速度很快。(the compressed 2D DCT and the inverse DCT. Images can be done DCT and inverse DCT achieve a very simple, very fast.)

太阳能电池仿真模型,可根据不同的温度和日照仿真电池的I－V，P－V曲线(solar cell simulate model)

捷联惯导初始对准的程序 matlab写的 包括动基座和静基座对准。(Initial Alignment of SINS program written in matlab, including dynamic and static alignment.)