OLPP_MatlabCode

根据过渡带宽及阻带衰减要求，选择窗函数的类型并估计窗口长度N（或阶数M=N-1），窗函数类型可根据最小阻带衰减As独立选择 (According to the transition bandwidth and stopband attenuation requirements, select the type of window function and estimate the window length N (or the order of M = N-1), type of window function according to the minimum stop-band attenuation can be independently selected As)

Variation of intermodal Dispersion DT/L with the profile parameter alfa for a graded-index fiber

实现数值分析中单纯形法改进方法的matlab代码，即改进单纯形法算法，能够实现大型稀疏矩阵的迭代，代码分为三分。这是2/3..(Numerical analysis to achieve improved method simplex method matlab code that modified simplex method algorithm, to achieve large sparse matrix iteration, the code is divided into thirds. This is the 2/3 ..)

Clever B.Moler 博士的经典著作《Mumerical Computing with MATLAB》介绍的一个ode23简化版ode23tx算法思想及其程序代码。(Clever B.Moler Dr. classics " Mumerical Computing with MATLAB" describes a simplified version of ode23tx ode23 algorithm ideas and program code.)

so sanh ve 2 nut chuyen tiep AF va DF trong mang hai chang hop tac voi nut chuyen tiep co dinh

coherent ML receiver

MUSIC算法是一种基于矩阵特征空间分解的方法。从几何角度讲，信号处理的观测空间可以分解为信号子空间和噪声子空间，显然这两个空间是正交的。信号子空间由阵列接收到的数据协方差矩阵中与信号对应的特征向量组成，噪声子空间则由协方差矩阵中所有最小特征值（噪声方差）对应的特征向量组成。MUSIC算法就是利用这两个互补空间之间的正交特性来估计空间信号的方位。噪声子空间的所有向量被用来构造谱，所有空间方位谱中的峰值位置对应信号的来波方位。MUSIC算法大大提高了测向分辨率，同时适应于任意形状的天线阵列，但是原型MUSIC算法要求来波信号是不相干的。(MUSIC algorithm is a matrix decomposition method based on feature space. From the geometric point of view, the observed spatial signal processing can be decomposed into signal subspace and noise subspace, it is clear that the two spaces are orthogonal. The signal received by the array to the subspace of the covariance matrix of the signal component corresponding eigenvectors, the noise subspace of the covariance matrix of all by the smallest eigenvalue (noise variance) eigenvectors corresponding to the composition. MUSIC algorithm is the use of orthogonal properties between these two complementary space to estimate the spatial orientation of the signal. Noise subspace of all vectors are used to construct the spectrum, all the spatial orientation of the spectrum corresponding to the peak position of the signal wave direction. MUSIC algorithm greatly improves the resolution measurements, while the antenna array adapted to any shape, but the prototype MUSIC algorithm requires to wave sign)

PSCAD，DC-AC-DC直流变压器，中间为100Hz高频变压器，一边实现Vf控制，另一边实现UdcQ控制。先在PSCAD中加载dqo_new_lib.psl后再加载DC_AC_DC_100Hz.psc。(PSCAD, DC-AC-DC DC transformer, the middle of 100Hz high-frequency transformer, while the realization of Vf control, the other side to achieve UdcQ control. First load dqo_new_lib.psl in PSCAD and then load DC_AC_DC_100Hz.psc.)

说明：  最优问题求解工具包，通过GA遗传算法，可以求得最优解。(Optimal problem solving toolkit, through the genetic algorithm GA, you can get the optimal solution.)

说明：  语音信号基本的处理，包括spectrogram和specgram两个函数的比较(The basic speech signal processing, including spectrogram and specgram comparison of the two functions)