rastamat

优秀论文及配套源码。电压暂降是动态电能质量问题中最受关注的热点之一。大量新型电力电子设备的广泛使用对电网电能质量的要求越来越高，而且电压暂降在电网中又具有一定的传播性。因此，无论从电网还是用户都迫切需要对电压暂降进行研究和治理。对电压暂降的检测是解决电压暂降的前提条件，故本论文主要对电压暂降的检测方法进行研究。 本文分析了国内外短时电能质量扰动检测的研究现状，并着重讨论了短路故障、感应电动机启动和变压器激磁三种电压暂降扰动情况下电压暂降的特性；在此基础上选择了基于S变换的短时电能质量扰动检测方法，从S变换的结果S模矩阵及S复矩阵中提取出所需数据并以此来对各种扰动情况下的电压暂降的幅值、相位跳变、持续时间和谐波含量进行分析。仿真结果表明，该方法很好地实现了对电压暂降各特征量的检测。 (The voltage sag is one of most hot topics in dynamic electric energy problems. Masses of new power and electron facilities have been put into use widely, requiring a high quality of electric network and power, chiefly the voltage sag. Moreover, the voltage sag can spread in the electric network. So people have every reason to research and control the voltage sag. However, before developing the voltage sag, people have to detect it. On account of the above, this essay will chiefly focus on the detect methods of the voltage sags. In this paper, the status of the short duration power quality disturbance based on the different method are researched firstly, and emphasizes the characteristic of the voltage sag under the situation of the three kinds of voltage sag disturbances like the short circuit fault, induction motor start-up and transformer excitation. On the basis of the above, the short duration power quality disturbance detection method based on S transform is chosen. The complex m)

说明：  vmd的原始程序，亲测可以用，有什么问题的欢迎大家留言与探讨。(VMD original program, pro test can be used, what questions are welcome to leave a message and discuss.)

一款简单的自适应阈值的MAYLAB代码，使用的时候需要更改图片的路径，阈值参数可以自行设置(A simple adaptive threshold MAYLAB code, when the need to change the image using the path, free to set the threshold parameter)

说明：  利用matlab实现移位 卷积 相加 等等(Using matlab convolution sum, and so achieve the shift)

单输入单输出模型预测控制算法实现--一般实现，逆响应和线性规划(SISO model predictive control- a general approach, inverse response and linear programming)

反步法求取船舶的运行轨迹，是大连海事大学某学生毕业论文中的仿真图形。(Backstepping strike a ship running track, Dalian Maritime University, a student thesis in the simulation graphics.)

说明：  用hht进行信号处理，附带matlab 程序(Signal processing by HHT with MATLAB program)

丢失数据的主成分分析，处理不完整数据的pca分解。pcaMatlab(Principal component analysis of missing data, incomplete data processing pca decomposition.pcaMatlab)

极速学习机,可以做模型预测、评价，比BP神经网络更优。(Fast learning machine, you can do the model prediction, evaluation, better than BP neural network.)

Beamforming using Leas Mean Square