sobelPprewitt

Create a struct for working with students

matlab里ployfit的原型 c#版(the matlab ployfit the prototype c# version)

调制指数为0.5的2幅度CPFSK信号的相位轨迹图仿真模型(The phase modulation index trajectories of two simulation model 0.5 magnitude CPFSK signal)

说明：  1.被动悬挂设计simulink模型 2.对于任意一段路面谱，求出其功率谱密度与频率的分布关系，在标准路面图中画出曲线验证路面 3.积分白噪声法路面构造simulink模型 4.整车平顺性分析simulink模型 5.实际路谱案例，c级路面 6.悬架动载荷功率谱密度图像画图matlab编程(1. Simulink model for passive suspension design 2. For any section of road spectrum, the distribution relationship between power spectral density and frequency is obtained, and the curve is drawn in the standard road map to verify the road surface 3. The Simulink model of pavement construction based on the integral white noise method 4. Vehicle ride comfort analysis Simulink model 5. Actual road spectrum case, class C pavement 6. Matlab programming of suspension dynamic load power spectral density image drawing)

目前，互联网上HHT信号处理技术有 三种实现方式，采用MATLAB编程语言，一种是法国研究者设计的G Rilling 2007 另一种是MATLAB文件交换中心由Alan Tan开发的plot_hht程序包，第三种是台湾中央大学数据研究中心提供的EEMD包。 其中，我使用了plot_hht程序包，其使用了三个终止条件，驻留分量的单调性，极值点与零点的个数相差不超过1，还有黄锷1998经典文献提出的 SD>0.1，单调性的判断，并不是去判定驻留分量是否是单调函数，而是当曲线是双曲线时，循环结束，由于没有考虑端点效应，程序比较简洁，好读懂，大家 学习HHT可以从这个程序包入手，在此抛砖引玉，希冀有人能比较这三种不同的算法的性能和时间复杂度，以及对各种信号的适应性。 (There provides three types of HTT program packages: one developed by France researcher G. Rilling 2007, the other provided by by Alan Tan from Matlab file exchange center and the third one by Taiwan Central University Data Research Center. Please start from the simple one by Tan to learn more.)

说明：  直接序列扩频通信系统建模与仿真编程，直接序列扩频通信系统建模与仿真编程。(Direct sequence spread spectrum communication system modeling and simulation programming, direct sequence spread spectrum communication system modeling and simulation programming.)

Matlab/Simulink模型单相逆变器，实现DC/AC的电力变换功能，电压幅值为311V，频率为50Hz。(Matlab/Simulink model of the single-phase inverters to achieve DC/AC power conversion function, the voltage amplitude of 311V, frequency is 50Hz.)

说明：  详细的介绍用Matlab处理数字信号的方法(Detailed introduction of digital signal processing using Matlab method)

Boost Converter simulation in Matlab

To investigate the effects of the discrete Fourier transform parameters on the frequency spectra of discrete-time signals. (Display x(n) on the screen with the plot command in Matlab)