MatlabaCPP

EM算法,用于估计参数的一个初级入门实例(EM algorithm, used to estimate the parameters of a primary entry examples)

很好的一本matlab编程辅导书籍，非常实用！(Good counseling a matlab programming books, very useful!)

说明：  注水算法的简单应用程序，通过简单的实例实现注水算法(water fillling program)

该算法是用于量子运算的matlab程序源码码，包含声称量子态，量子寄存器等 可直接使用。 (The algorithm is used for quantum computing matlab program source code contains the claim that quantum states, quantum register can be used directly.)

matlab中的画图程序，包括了坐标设置，最大范围设置，增加网格，网格间距，曲线颜色粗细，曲线类型。(Matlab drawing program, including the coordinate set, maximum range setting, increasing the grid, the grid spacing, color thick curve, curve type.)

A pv module is modeled in MATLAB/SIMULINK environment with use of mathematical equations that describe pv module s schematic model. This model has 2 inputs named Vpv and insolation and has 2 outputs named Ipv and Ppv. Insolation signal is varying.

研究表明，构成K一L变换矩阵的向量也就是ToePhtz矩阵的特征向量。与此同时，离散 余弦变换矩阵逼近于ToePutz矩阵的特征向量矩阵，所以离散余弦变换矩阵与自然图像的 K一L变换矩阵十分相似。经过离散余弦变换后的变换系数块的协方差矩阵Cy非常接近对角 阵，即除了对角线元素以外，其它很多元素都近似为0，并且在左上角集中了主要能量。这 反映了自然图像大部分区域变化不大，亮度突变只占少数，即图像能量以低频成分为主的特 性。通过变换后的量化，舍弃对视觉效果影响较小的次要信息，可达到进一步的压缩效果。 虽然从去相关性能的意义上讲，DCT是一种次于K一L变换的准最佳变换，但是从算法实现的角度来看，DCT则远远优于K一L变换。首先，当图像的分块大小确定后，DCT的变换矩阵也就随之确定了，不随输入信号的统计特性变化而变化 其次，二维DCT能够分解成两次一维DCT，有利于硬件实现。 (Studies have shown that constitute a K L transformation matrix vector is ToePhtz eigenvector of the matrix. At the same time, discrete The cosine transform matrix approximation in ToePutz matrix eigenvector matrix, so the discrete cosine transform matrix and natural images Is very similar to a K L transformation matrix. After discrete cosine transform, the transform coefficient block of Cy is very close to the diagonal of covariance matrix Matrix, namely except diagonal elements, many other elements are approximate to 0, and focused the main energy in the upper left corner. this Reflects the natural images most area changed little, brightness mutations accounted for only a few, the energy is given priority to with low frequency components of image Sex. Through quantitative after transformation, abandoning smaller effect on the visual performance of secondary information, can achieve further compression effect. Although from related to the performance of the sense, DCT is a kind o)

矩阵应用matlab工具箱。增加了基于矩阵的复杂运算。(Matlab toolbox matrix applications. Increase the complexity of matrix-based computing.)

交错网格声波方程正演模拟，PML吸收边界，比较适合刚刚接触的学者。交错网格有限差分地震波场计算，二维的声波正演，利用空间10阶，时间2阶。(The CalCulation of the SeismiC Wave一 fieldwith Staggered-grid Finite difference Sheme)

电网发生三相对称故障时，基于dq变化法的电压跌落检测(Symmetrical three-phase power grid failure, the voltage drop dq transform method based on the detection)