DMC

工程人员必备的matlab参考书，是第四版，被很多人奉为经典。(Essential reference for engineers matlab)

qpsk modulation in Additive White Gaussian Noise channel simulation

Bark和ERB滤波器组实现的Matlab源程序-Bark and ERB filter banks realize the Matlab source(Bark and ERB filter banks realize the Matlab source)

This matlab code is graphene s surface_impedance and conductivity

说明：  MATLAB6.0数学手册-第2章，一本易于掌握的数学手册，内容由浅入深，对于初学者能很快掌握。(MATLAB6.0 the math manual- Chapter 2, a mathematical manual is easy to grasp, easy-to-digest content for beginners can quickly master.)

锁相环就是锁定相位的环路。学过自动控制原理的人都知道，这是一种典型的反馈控制电路，利用外部输入的参考信号控制环路内部振荡信号的频率和相位，实现输出信号频率对输入信号频率的自动跟踪，一般用于闭环跟踪电路。(Locked loop (phase), as the name implies, is the lock phase of the loop. Principle of automatic control of the people know, this is a typical feedback control circuit, the external input reference signal control the frequency and the phase of the oscillation signal inside the loop, the frequency of the output signal of the input signal frequency automatic tracking, generally used for closed-loop tracking circuit. )

说明：  MMC半桥模块，含六个子模块-七电平逆变器。(MMC, 6 submodules, half-bridge, converter)

理论力学的计算机仿真教程。详细讲解了matlab环境下理论力学常见问题的编程设计。(Theoretical mechanics, computer simulation tutorial. Explain in detail the design of Theoretical Mechanics FAQ programming in Matlab environment.)

Image sharpening using Laplacian

压缩文件包含两个matlab程序，m_sequence.m是子函数，功能是根据本原多项式生成对应的m序列，m_sequence_nature.m是主函数，调用m_sequence.m生成m序列并验证m序列的特性。(Zip file contains two matlab program, m_sequence.m a subroutine, function is a polynomial to generate the corresponding m-sequence according to the primitive, m_sequence_nature.m is the main function, call m_sequence.m m sequence generation and validation features m sequences.)