4_DPSK

基于MATLAB，对光波导放大器的增益分析，主要是泵浦功率对增益的影响。(Based on MATLAB, for analysis of optical waveguide amplifier gain, pump power is mainly the impact of the gain.)

说明：  B样条的编程代码，通过MATLAB生成图形(B-spline programming code, graphics generated by MATLAB)

Rayleigh_Channel based in Jakes model

说明：  simulink ac too dc simpower in matlab

针对提出的故障信号，利用awgn加噪，对其进行小波软硬阈值降噪，提出一种改进阈值，利用五种自适应阈值函数sqtwolog、rigrsure、heursure、minimaxi和ddencmp中阈值选取原则，对软阈值、硬阈值和改进阈值进行降噪效果对比。(In view of the proposed fault signal, the wavelet soft and hard threshold de-noising is carried out by AWGN adding noise, and an improved threshold is proposed. The threshold selection principle of five adaptive threshold functions, sqtwolog, rigrsure, heursure, minimaxi and ddencmp, is used to compare the soft threshold, hard threshold and threshold value.)

matalb编写的debye函数m文件(prepared matalb Debye function m file)

数字电视传输系统中LDPC码编码器的研究与FPGA实现，详细介绍了编译码原理以及具体的实现过程(Digital TV transmission systems of LDPC encoder and FPGA implementation, detailing the encoding and decoding as well as specific realization of the principle )

program in matlab code

这是一款朋友生日祝福MATLAB编程，可以让你的朋友过一个不一样的生日(This is a friends birthday wishes MATLAB programming, you can let your friends over a different birthday)

This matlab code for DWT image watermarking