基于MATLAB的大气光通信仿真与信道建模

信号估计 最大似然估计模块 克拉美罗界模块(Maximum likelihood estimation modules)

说明：  CANOpen-CanFestival-2.03

通过2FSK通信系统综合设计实验，加强对2FSK调制器与解调器的通信技术电路理解，学会查寻资料、方案比较，以及设计计算环节。学会对所学基本理论知识的综合运用；掌握使用Multisim软件的操作方法(Through the comprehensive design experiment of 2FSK communication system, we need to enhance the understanding of the communication technology of 2FSK modulator and demodulator, learn to search for data, compare schemes, and design calculation links. Learn the comprehensive application of basic theoretical knowledge and master the operation method of using Multisim software)

16QAM调制解调，包含QAM的调制解调Matlab程序(16QAM modem, including QAM modem matlab program)

信息经格雷码映射，进行QPSK调制并通过AWGN信道发射，在接收端进行QPSK解调，并统计误符号率和误码率。(Information on the Gray code mapping, QPSK modulation and emission through the AWGN channel, QPSK demodulator at the receiving end, and the statistical symbol error rate and bit error rate.)

可以运行的m4k20功率分配图，mimo功率优化,OFDM典型仿真程序，贪婪算法仿真程序，以及16QAM仿真程序，经过修改的可以使用(M4k20 can run the power distribution map, mimo power optimization, OFDM typical simulation program, greedy algorithm simulation program, as well as 16QAM simulation procedures can be modified to use)

开关电源反激电路48V/1.5A。电路原理图(Switching power supply flyback circuit 48V/1.5A. Circuit schematic)

实用性代码，可以在手机等移动设备上很好的使用，可操作性强。(Usefulness of the code can be very good for use on mobile phones and other mobile devices operable.)

说明：  主要包含BPSK信号产生，成形滤波，调制，加噪，下变频，解调(It mainly includes BPSK signal generation, shaping filtering, modulation, noise adding, down conversion and demodulation)

《光通信系统》的电子文档，对于学习光纤通信的人有很大的帮助。(The optical communication system, "the electronic document, for learning optical fiber has a lot of help.)