ask fsk

说明：  MSK信号的调制与解调，根据书上的代码进行了修改，非常详细(Modulation and demodulation of MSK signal)

实现LDPC码校验矩阵的构造，采用Mackay 1A方法(Implementation of LDPC code check matrix construction uses Mackay 1A method)

massive MIMO 系统的各种性能仿真(Performance simulation of massive MIMO system)

2fsk调制基于SIMULINK仿真模型 实现了误码率和频谱的仿真 (2FSKtiaozhijiyu simulink fangzhenmoxing shixianlewumlhepinpude fangzhen)

OFDM中降低峰均比的方法，将传统的SLM法，改进的SLM法和限幅加改进SLM法进行比较(Compare OFDM PAPR reducing methods in the traditional SLM method, improved SLM method and limiter plus improved SLM method)

MIMO技术中瑞利衰落信道的MATLAB源程序的仿真(rayleigh fading channel generator)

STM8S - for new member

本源码包参考英国Southampton大学Robert G. Maunder教授2008年的EXIT charts开源demo，给出了通用(分量码多项式可自定义)并行级联Turbo码的EXIT charts的作图源码。同时可完成迭代轨线、BER等值线的绘制等工作。 由于对于码块长较大的情形仿真需要较长时间，源码包也给出了部分分量码多项式的仿真结果，可直接用于绘图。 源码包还给出了最经典的S.Ten Brink介绍EXIT charts基本原理的参考文献，以及本人对通信系统中迭代译码过程分析技术综述的小论文，希望对大家有所帮助。(This source package comes after Professor Robert G. Maunder s open source demo about EXIT charts in 2008 from University Southampton, UK. It is designed for universal (constituent code generation polynomial can be customized) Parallel Concatenated Turbo Code EXIT charts. The iterative trajectories and BER contour drawing is also completed in this package. Since the long block case costs a lot of simulation time, some simulation results are included in the package. We also give the most classical introduction to the basic principles of EXIT charts from S. Ten Brink, as well as a document about analysis technologies for iterative decoding process in communication systems. Hope this will help.)

一种大范围高精度的OFDM频偏估计新方法(A New OFDM Frequency estimation method)

说明：  ls 与 mmse 两种信道估计算法比较(Comparison of LS and MMSE channel estimation algorithms)