multimedia_materials

大功率分布式发电系统通常采用三相逆变器并网，由于三相逆变器系统参数耦合，传统方法设计的控制器算法复杂。在d。q坐标系下为双模式三相并网逆变器的独市和并网模式建立了数学模型．采用新的解耦方法，依据独立和并网模式控制系统超调量越小，模式切换过程中被控量的波动越小。切换过程就越平滑的原则。完成了两种模式的控制器设计，即分别应用积分环节、比例环节即可将独立模式和并网模式整定成典型的二阶系统，控制器设计简单．能取得优良的动、静态特性。仿真与实验验证了设计方法的正确性和可行性。(It is necessary to research on three—phase grid-connected inverter which a8 an important part of distributed generation．The parameters of three—phase inverter are coupling．The traditional design algorithm of the controller is complicated．The mathematicM models of stand—alone mode and grid—connected mode are established in d，q fhme． Based on the principle that the lower overshoot of the controller system，the smaller fluctuation of the controlled vailables， the smoother in transfer，controllers of two modes are designed separately，as integral and proportional regulators are separately added to stand-alone mode and g而d—connected mode．The controller has good dynamic and static char— acteristics．Simulation and experimental results varify the correctness and feasibility of the proposed method．)

matlab 频谱分析，用于振动信号的频谱分析代码。(spectrum analysis)

经典著作 pattern classification的配套matlab版解题指导(Computer_manual_to_accompany_Pattern_Classification)

简单的音乐合成实验，可以对以段现有的音乐进行傅里叶分析，并播放一段自己输入生成的音乐。针对信号系统Matlab应用的大作业编写(Simple music synthesis experiments, the section on Fourier analysis of existing music, and play a segment of the input generated by their music. Matlab application for a large signal system write operations)

该程序找到了使用L曲线算法的拐点，是正则化程序中，寻求正则化参数的一种比较好的方法。CORNER Find corner of discrete L-curve via adaptive pruning algorithm.(The program found the algorithm using the L-curve inflection point, is the regularization process, the regularization parameter for a better way. CORNER Find corner of discrete L-curve via adaptive pruning algorithm.)

ber computation of maximal ration combiner with ipi

in this code random noise is denoise by wavelet and find the parameter for best wavelets

image registration with surf

说明：  首先，在非视距环境中，信号传播将产生多径效应，这将导致对到达时间的错误估计。其次PSO(Firstly, in NLOS environment, signal propagation will produce multipath effect, which will lead to wrong estimation of arrival time. Second, PSO)

PID比例积分微分控制程序包 神经网络自适应控制程序