GroundFaultofNeutralGroundSystem

DC-DC降压变换器，采用二次型最优控制策略，把一个电压源变为低压的稳定电源(DC- DC buck converter, using the quadratic optimal control strategy, a voltage source to the stability of the low voltage power supply)

Induction machines are more rugged, compact, cheap and reliable in comparison to other machines used in similar applications. Vector controlled induction motor drive outperforms the dc motor drive because of higher transient current capability, increased speed range and lower rotor inertia

（1）在MATLAB环境下编写FFT算法（不调用系统现有函数）； （2）实现对选定图片进行FFT计算、还原（IFFT计算），并与系统FFT函数做对比，进行分析； （3）设计GUI界面。((1) the preparation of the FFT algorithm (do not call the system existing function) in MATLAB environment (2) to achieve the selected image to the FFT calculation, reduction (IFFT computing), and FFT functions to do comparison with the system for analysis (3) Design GUI interface.)

通过改变想要处理的帧，和预测器阶数，对原始语音帧和预测语音帧作一个比较，并作出短时谱和lpc谱，最后作倒谱比较。(By changing the processing of the desired frame, and the predictor order, the original speech frame and the predicted speech frame to make a comparison and to make short-term spectrum and the lpc spectrum, cepstrum last for comparison.)

非线性调频信号的产生及其时域脉压程序。非线性调频信号的产生及其时域脉压程序。(The evolution of nonlinear frequency modulation signal and its time-domain pulse pressure.)

从网格划分软件Gambit读取1维网格的Matlab程序，来自《节点间断迦辽金方法》一书(Matlab program read from the meshing software Gambit one-dimensional grid, from the node discontinuous Galerkin method, " a book)

包括了振动分析常用的matlab函数功能，适合于机器状态监控人员分析(Includes vibration analysis matlab function commonly used features, suitable for machine condition monitoring analysis)

小波包分析提取振动信号中的特征频率，详细画出了时域和频域的相关图，毕业设计有用。( Wavelet packet analysis to extract vibration signal characteristic frequency, Correlation diagram shown in detail the time domain and frequency domain, Graduation usefu.)

说明：  使用matlab/simulink实现基于矩阵变换器的异步电机直接转矩控制(Direct torque control of induction motor based on matrix converter using Matlab / Simulink)

本程序利用球形不变随机过程法模拟产生服从瑞丽分布的海杂波，适合实验室环境下做为海杂波的输入信号。(The program uses the same random process simulation of spherical produce the distribution of sea clutter obey Ruili, suitable for sea clutter under laboratory conditions as the input signal.)