dlldemo

说明：  matlab锁相环解决相干光通信系统激光器相位噪声(Phase-locked loop to solve the phase noise of laser in optical communication system)

说明：  本文主要从自适应调制的算法及实现出发，引入了OFDM子载波分组的概念，详细阐述了五种固定阈值算法和子带BER预估计算法的原理及实现，并在此基础上加入自适应编码，实现自适应调制与编码。(Based on the algorithm and implementation of adaptive modulation, this paper introduces the concept of OFDM subcarrier grouping, elaborates the principle and implementation of five fixed threshold algorithms and subband BER estimation algorithm, and adds adaptive coding to realize adaptive modulation and coding.)

说明：  polar 代码，使用matlab进行仿真，实现了polar代码基本功能，并提供polar基本原理说明(matlab polar simulation)

完整的GMSK仿真程序，viberbi很好的实现,可以很好解决问题(it is very good for Complete GMSK simulation program can be good. if you use it,ok)

详细分类介绍了AM,BPSK,BFSK,PAM信号的循环谱与循环自相关函数的生产，具有可操作性。(The production of cyclic spectrum and cyclic autocorrelation function of AM, BPSK, BFSK and PAM signals is introduced in detail, and it is operable.)

该程序为LTE中3GPP协议的PUSCH信道的物理资源映射程序，可进行物理层链路的资源映射部分(The program is a physical resource mapping program for the PUSCH channel of the 3GPP protocol in LTE, and the resource mapping part of the physical layer link)

通过控制并口给刺激与记录信号，行为电生理实验用(By controlling the parallel port to stimulate and record signals, for behavioral electrophysiological experiments )

说明：  实现蒙特卡罗分析，可以直接调用进行对误码率等数字通信的相关参数分析(The realization of the Monte Carlo analysis, can directly call on the bit error rate for digital communications, such as analysis of relevant parameters)

在LDPC译码中用LLR方式,跌代次数分别为5和10对译码性能的影响MATLAB写的()

ijetty服务器的启动关闭以及资源下载，基本框架，直接import进eclipse就可运行(ijetty server startup shutdown, and resources, the basic framework for direct import into eclipse can be run)