spec_plot

实现数字信号的QPSK调制，并绘制频谱图(QPSK modulation of digital signal, and map spectrum)

用matlab实现变分模态分解算法，有效分解信号(variational model decomposition)

LMS自适应滤波器算法(algorithm about LMS(least-Mean-squrt) adaptive signal processing)

利用乘幂法求解矩阵A=[6，-11,6 1,0,0 0,1,0]的特征根（1,2,3）(solve the characteristic roots of array: A = [6,-11,6 1,0,0 0,1,0] by using matrix power method the root=(1,2,3))

Maple Bai 2: Tinh toan trong maple

说明：  对直方图进行均衡化，并把结果显示在同一个界面上(Of histogram equalization, and the results displayed in the same interface)

光伏逆变仿真，控制光伏并网的电压电流和谐波含量(Grid-connected inverter simulation, control photovoltaic current and voltage harmonic content)

SCMA译码仿真，做毕业设计的时候写的。可能效果不是最理想的(SCMA decoding simulation)

通信系统仿真原理与无线应用书中matlab源程序(Communication System Simulation Principle and wireless applications matlab source book)

给出了关于卡尔曼滤波器的详细说明，是新人学习必备(Given on a detailed description of Kalman filter is a new learning required)