K-Shortest-Path-Yen-Algorithm

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.)

仿真图是速度、距离、幅度三维图像，基于matlab GUI界面设计,用MATLAB实现动态聚类或迭代自组织数据分析，IDW距离反比加权方法，FMCW调频连续波雷达的测距测角，对HARQ系统的吞吐量分析，结合PCA的尺度不变特征变换(SIFT)算法，是路径规划的实用方法。( FIG simulation speed, distance, amplitude three-dimensional image, Based on matlab GUI interface design, Using MATLAB dynamic clustering or iterative self-organizing data analysis, IDW inverse distance weighting method, FMCW frequency modulated continuous wave radar range and angular measurements, HARQ throughput analysis of the system, Combined with PCA scale invariant feature transform (SIFT) algorithm, Is a practical method of path planning.)

有关可变码长的LDPC编码电路的设计与实现和一些相关的英文资料以及文献(LDPC)

LDPC码既低密度奇偶校验码（Low Density Parity Check Code，LDPC）(（Low Density Parity Check Code，LDPC）)

实现基于Robinson算子的边缘检测功能，该算法比传统的算法具有更好的边缘检测效果(Achieve the function of edge detection based on Robinson operator, the algorithm than the traditional edge detection algorithm has a better effect)

matlab中大津法（otsu）的源代码程序，已经经过测试，可以在matlab中直接运行(matlab in Otsu (otsu) program source code, has been tested and can be run directly in matlab)

说明：  AR模型估计，语音信号的AR参数估计，简单小程序(AR model estimation, AR parameters of the speech signal estimate, simple applet)

光参量放大中信号波长对转换效率的影响matlab仿真代码(Optical parametric amplification of the signal wavelength conversion efficiency of matlab simulation code)

说明：  共轭梯度法（Conjugate Gradient）是介于最速下降法与牛顿法之间的一个方法，它仅需利用一阶导数信息，但克服了最速下降法收敛慢的缺点，又避免了牛顿法需要存储和计算Hesse矩阵并求逆的缺点，共轭梯度法不仅是解决大型线性方程组最有用的方法之一，也是解大型非线性最优化最有效的算法之一。 在各种优化算法中，共轭梯度法是非常重要的一种。其优点是所需存储量小，具有步收敛性，稳定性高，而且不需要任何外来参数。(The Conjugate Gradient method is a method between the steepest descent method and the Newton method. It only needs to use the first derivative information, but overcomes the shortcomings of the steepest descent method and avoids the need for the Newton method to store And the calculation of Hesse matrix and the inverse of the shortcomings, conjugate gradient method is not only to solve large-scale linear equations one of the most useful methods, but also solution for large-scale nonlinear optimization of one of the most effective algorithm. In a variety of optimization algorithms, conjugate gradient method is a very important one. The advantage is that the required storage capacity is small, with step convergence, high stability, and does not require any external parameters.)

matlab可以方便地实现付利叶变换，为了在vc中实现这样的精度，有次程序。(matlab can easily achieve profits Fourier transform, in order to achieve vc such precision, there are times procedures.)