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此代码仿真了一个语音输入输出系统，语音信号经过AD转换后，经过DSSS调制解调后，通过DA转换还原输入的声音，每一步的的波形都可以观测，对实际DSSS系统设计有很大的参考价值(This code simulation of a voice input and output systems, speech signal after AD conversion after DSSS modem through DA conversion to restore the input voice, each step of the waveform can be observed, the actual design of DSSS systems have great reference value)

gson2.2.2的3个jar包，需要的可以下载(gson2.2.2 of 3 jar package, need to be downloaded)

说明：  现代信号处理中的LMS算法和RLS算法的MATLAB仿真(Modern Signal Processing LMS algorithm and RLS algorithm MATLAB simulation)

通过设置不同的参数利用Matlab软件仿真了不同场景下的系统性能 (This document suggests a user’s guide to a MATLAB application which simulates a Spatial Channel Model (SCM) based on reference [1] with some minor adjustments. It focuses on how to use the Graphical User Interfaces (GUIs) and the functions of the application and avoids going into specifics about the nature of the parameters as this is done analytically in the reference document)

A MIMO multiplexing system with NT transmit and NR = NT receive antennas is designed. The main challenge for MIMO systems lies in the non-orthogonality of the transmission channel. This can be solved by turbo processing. Turbo channel encoder is used for converting the bits in its suitable form. Then different M-ary QAM is compared.

this is the code which is used apart from rls

说明：  MATLAB与C/C++混合编程代码,包括MATLAB引擎，MAT共享，MEX技术，COM，Mideva工具(MATLAB and C/C++ mixed programming code, including MATLAB engine, MAT share, MEX technology, COM, Mideva tools)

这是仿真多普勒频移对脉压影响的程序，采用Matlab编写。(this is a program about the effect of the Doppler shift on PC.)

matlab最短路的贪心算法，用VC++实现，把ShortEst.dll复制到matlab工作文件夹运行（先要运行mex-setup，关联VC与MATLAB）调用方法如 a = [-1,2,3 2,-1,4 3,4,-1] ShorstEst(a) 即可(matlab most short-circuit the greedy algorithm, using VC++ to achieve, and copy it to ShortEst.dll working folder matlab run (first run mex-setup, associated VC with MATLAB) method call, such as a = [-1,2,3 2,-1,4 3,4,-1] ShorstEst (a) can)

说明：  多径信道信噪比（Signal-to-noise ratio），简称SNR，这三个字经常会出现在各种文章、文献、产品说明书中，然而它并不是简单的一个通信专业名词，而是一个无处不在的衡量天枰。它可以衡量一个人的生活状态、工作状态，可以衡量爱人间、朋友间的情感交流效率，同样也可以衡量一个社区或是一个系统的运行状态。(multiple Path Channel)