New-Text-Document-(2)

根据夏道止老师编的电力系统分析教材里的潮流计算原理编写的(Calculated in accordance with the principles of writing Harcourt Road teacher only power system analysis compiled textbooks trend)

傅里叶变换过程中由于时域信号长度有限，变换后有可能漏掉大的频谱分量(Fourier transform process, due to the finite length of the time domain signal, after conversion may miss a large spectral components)

基于变桨距PID控制器的风力发电模型。仿真环境matlab->simulink。特点：随机风速模型；桨距恒功率控制；通俗易懂的PID控制器(Variable pitch wind model based PID controller. Simulation environment matlab-> simulink. Features: Random velocity model pitch constant power control straightaway PID controller)

说明：  轴承滚动体故障诊断代码，内含频率计算，大家一起学习(Rolling Element Bearing Fault Diagnosis code, containing the frequency calculation, everyone learning together)

MATLAB中deploytool的一个demo。写了一个简单的GUI，然后新建deploytool工程，编译，运行成功。需要你的计算机上有MCRInstall(a demo for matlab deploytool.A GUI program is given which have been compilered into exe.You need MCR.)

MUSIC算法[1]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 algorithm [1] is a feature space based on matrix decomposition method. From the geometric point of view, the signal processing can be decomposed observation space the signal subspace and the noise subspace, it is clear that the two spaces are orthogonal. Signal Subspace data received by the array covariance matrix and eigenvectors corresponding to the signal component, the noise subspace from the covariance matrix of all the smallest eigenvalue (noise variance) eigenvector components.)

直接序列扩频（Direct Sequence Spread Spectrum）工作方式，简称直扩方式（DS方式）。就是用高速率的扩频序列在发射端扩展信号的频谱，而在接收端用相同的扩频码序列进行解扩，把展开的扩频信号还原成原来的信号。(irect Sequence Spread Spectrum (Direct Sequence Spread Spectrum), hereinafter referred to as Direct expansion mode (DS). Is a high rate of spread spectrum sequence extension in signal spectrum, and at the receiving end with the same spread spectrum code sequence for expansion, the expansion of the spread spectrum signal back into the original signal. )

基于环形的领域最优粒子群优化算法，MATLAB源程序(Based on the best areas of the ring particle swarm optimization algorithm, MATLAB source code)

说明：  ：文章分析了轻型高压直流输电的基本原理，通过采用定直流电压、定交流电压的控制方式，建立了基于MATLAB的轻型直流输电系统的仿真模型，并以一个单机系统为例，分析了系统的控制模型。通过对三相 接地短路的分析，验证了所建立的仿真模型和控制系统的正确性和合理性，为进一步研究轻型直流输电系统的物理模型奠定了理论基础。(M ATLAB sim ulation of HVDC light system)

matlab代码 多径效应的通信原理仿真类型题目 二十径添加高斯噪声的效应(matlab code)