DeviceManagerAct

说明：  用于全国电子设计大赛 备赛资料，ment of real-time displaying the position coord(The purpose of the design is to get a more precise hand-written drawing board. We connect the copper clad board with a constant current source and introduce eight precise resistors. When the touch pen touches any)

430设计原理图 适用于初学者 本着实验方便而设计各种模块接口(430 design schematics for beginners in line with a variety of experiments designed to facilitate module interface)

直流断路器博士论文，利用电力电子器件。很不错的。(DC circuit breaker dissertation, the use of power electronic devices. Very good.)

STATCOM with Energy Storage for Smoothing Intermittent Wind Farm Power

自主水下机器人运动控制系统设计，word文件，有图有公式，比较不错！(Autonomous underwater robot motion control system design, word documents, there are pictures and formulas, quite good!)

pcb设计过程中，如何最快的拉线，可以参考此文件(In the process of PCB design, you can refer to this document for the fastest cable pulling)

已知：信号中心波长为2,天线阵元的间距为1米,快拍数为2000，空中有四个 源信号,假设它们的频率 四个源信号的方向分别为： 求： 1）在不加入噪声的情况下,观察并计算协方差矩阵特征值,并对它的特点 加以说明 2）分别采用MUSIC算法,CAPON算法, ESPRIT算法在下面四种情况下，对 上述四个信号源的波达方向进行估计,并画出它们的空间谱图； ①在不加入噪声的情况下, ②在加入高斯白噪声的情况下,假设信噪比为10dB 3）在信噪比变化范围为-20dB~+20dB时，分别采用MUSIC算法,CAPON算 法, ESPRIT算法，对上述四个信号源的波达方向进行估计,并画出波达方 向估计误差,随着信噪比变化的曲线图(即横轴为信噪比,纵轴为误差值)()

说明：  Pipe Sizer Calculation

this is about software architecture

LCL闭环控制系统的设计方案，可用于光伏系统和MATLAB建模(LCL closed-loop control system design can be used for photovoltaic systems and MATLAB modeling)