automatic-modulation-recognition

从经典功率谱估计周期图法原理入手，从理论上分析了其存在的局限性，借助Welch算法对其进行修正。依靠Matlab强大的数值分析和信号处理能力，进行实验仿真，比较不同的窗函数，不同的数据长度对Welch法谱估计质量的影响，并分析了造成这些影响的原因。(The paper mainly introduces the principles of Periodogram method of classical PSD estimation,analyzes the deficiency of Periodogram method in theory,and makes use of Welch to amend Perodogram method. By the use of simulation in Matlab, the impacts of different window function and different lenghth of data on estimation quality of Welch are discussed and the reasons of the impacts are analyzed.)

SVM算法的示例程序,帮助读者理解SVM算法的使用(the use of SVU，to help reader undstander how to user this methods)

compressive sensing theory

说明：  信号的双边带am调制，相干解调仿真。通信原理matlab仿真设计。(Double sideband signal am modulation, coherent demodulation simulation. Communication theory matlab simulation design.)

matlab code of filter for image enhancement

信道编码仿真模型 汉明码 RS码 BCH码(Simulation model of channel coding)

这个程序可以自定义颜色选择框，因为matlab自带的uisetcolor在编译后的.exe中运行会导致窗口最小化，所以可以自定义颜色选择框(This procedure can customize the color selection box, because in uisetcolor built-in matlab compiled. Exe run will lead to minimized windows, so can customize the color selection box)

电流环仿真，用MATLAB，采用Simulink(Current loop simulation, using MATLAB, using Simulink)

利用菲涅尔衍射计算给定图片的全息图案，程序里包含详细注解方便根据实际情况调整参数。(Computer generated holography using Fresnel diffraction)

一、观察序列频谱，观察信号通过系统后波形与频谱的变化。 系统函数，根据正准型结构（canonical form）编写样本处理算法。 (First, observe the sequence of the spectrum, observing the signal waveform and frequency spectrum through the system after the changes. System function, according to canonical structure (canonical form) the preparation of a sample processing algorithm.)