S参数反演程序

matlab实现人体回波模型创建和短时傅里叶测试(Matlab realization of human echo model and short time Fourier test)

说明：  关于极限学习机的回归拟合，还有分类的实例程序(On the regression fitting of the limit learning machine and the example program of classification)

利用BP神经网络实现对民族，古筝，摇滚，流行四类音乐的有效分类。matlab实现，提供数据和详细代码，有解释！(The BP neural network is used to realize the effective classification of four kinds of music: nationality, zither, rock and roll, and popular music. Matlab implementation, provide data and detailed code, there are explanations!)

说明：  abaqus 帮助文档中的蠕变本构模型，包括时效强化模型和应变强化模型，以及一个模型的inp文件(Creep constitutive model in abaqus help document, including time-based reinforcement model and strain reinforcement model, and inp file of a model)

基于空间矢量的电流型整流器，双闭环，可运行，实现了电压电流同相位功能(The current mode rectifier based on space vector can operate with double closed loops, and achieve the function of voltage current and phase.)

频率分集阵列发射波束图仿真，发射波束具有距离-角度耦合性，发射波束图最大值周期性出现，周期等于c/Deltaf。另外，提供了仿真所用的参考文献。(Transmit beamforming of frequency diverse array is range-angle dependent and its maximam is periodic occurrence. the period is equal to c/Deltaf. besides, the references are provided.)

说明：  lm求解非线性方程组(Solving nonlinear equations by LM)

说明：  完成对四旋翼飞行器的数学建模，并在matlab矩阵实验室中进行仿真，进一步设计飞行控制系统。(Complete the mathematical modeling of quadrotor aircraft, and simulate in MATLAB matrix laboratory.)

说明：  质心定位算法实现精度要求低的简单定位，加权质心定位比质心定位定位精度更高一些。(Centroid localization algorithm achieves simple positioning with low accuracy requirement, and weighted centroid localization is more accurate than centroid localization.)

说明：  单相全桥双极性逆变器，可以用来学习、仿真双极性控制(single phase full bridge inverter, bipolar)