matlab-GA

M-file for simulating a QPSK transmitter by modulating with a pseudo random bit stream. A serial to parallel conversion of the pseudo random bit stream is performed with mapping of two bits per symbol. A cosine and sine carrier is configured and the I and Q symbols modulate these carriers. The I and Q carriers are combined and time and frequency domain plots are provided showing key waveforms at various positions in the QPSK transmitter. (M-file for simulating a QPSK transmitter b y modulating with a pseudo random bit stream. A s erial to parallel conversion of the pseudo rand om bit stream is performed with mapping of two bi ts per symbol. A cosine and sine carrier is CBMs gured and the I and Q symbols Modulate these CARR IERS. The I and Q carriers are combined and a time nd frequency domain plots are provided showing key waveforms at various positions in the QPSK t ransmitter.)

实现了Buck变换器的三种仿真，分别使用了电力系统模块工具，SIMULINK根据系统状态方程，s函数建立Buck变化器的三种仿真模型。(Buck converter simulation.)

一个很好的KNN算法的matlab程序，供参考(it is a good program writting with matlab under windows)

仿真FBG传输特性，共三个函数，利用光纤的传数矩阵和耦合模理论，可在main函数中修改参数(Simulation FBG transmission characteristics of the three functions, the use of optical fiber transmission matrix and coupled-mode theory, the parameters can be modified in the main function)

本程序实现了Chen超混沌系统，把两个文件放在一个文件夹内就可以实现了。(This program implements Chen hyperchaotic system, the two files in a folder can be achieved.)

基于DCT变换以及人类视觉特性的数字水印算法 水印为二值图像(Digital watermarking algorithm based on DCT transform and human visual watermark is a binary image)

过程控制与simulink仿真的一本较好的书籍，欢迎下载(A better process control simulink simulation books are welcome to download)

基于电平交叉率的多普勒频移估计方法.PDF(Based on the level of cross-rate of Doppler shift estimation methods)

说明：  二阶锁相环 matlab实现 QPSK BPSK(Implementation of QPSK BPSK with second-order PLL matlab)

改善数字图像质量的滤波方法研究,内有中值滤波等多种去噪方法(To improve the quality of digital image filtering method, with a median filter denoising method, etc.)