多普勒频移条件下的 8-PSK调制解调及同步算法仿真

音频信号通过LM386放大，包括四元数的各种计算,D-S证据理论数据融合。( LM386 audio signal amplification, Including quaternion various calculations, D-S evidence theory data fusion.)

A 2x2 multiple-input multiple-output (MIMO) architecture using dual-polarized antennas (DPAs) is considered with orthogonal frequency division multiplexing (OFDM). The performance of DPAs is evaluated for adaptive polarization (AP) transmission techniques in time-varying multipath channels impaired by polarization mode dispersion (PMD) and polarization-dependent loss (PDL). AP transmission techniques considered include power gain maximization, polarization dispersion minimization for interference avoidance, polarization multiplexing with waterfilling, and a suboptimal multiplexing strategy that enables direct recovery of the polarization multiplexed streams, thereby simplifying the design of the receiver. Measured time-varying dual-polarized channel realizations from mobile-to-mobile experiments are used to estimate the capacity, diversity, and interference avoidance performance of the adaptive approaches.

在CBuilder中如何控制游戏手柄，对手柄编程(How to control the game in the CBuilder handle, to handle programming)

DSDV协议在ns2中的实现，可以直接使用，无需调试(DSDV protocol implementation in ns2, can be used directly, without debugging)

说明：  用opnet软件实现TDMA仿真，想和在做opnet仿真的同学相互交流学习(Realize TDMA simulation with OPNET software, want to communicate and study with students who are doing OPNET simulation)

说明：  GPS串口通信程序，新建了一个数据库ACCESS，在显示当前GPS信息的同时可以存储以前记录过的信息，保存在数据库中，便于以后查阅。当前GPS信息包括：时间，经度，纬度，速度，真实航向以及磁偏移(GPS serial port communication program, a database of new ACCESS, show the current GPS information can be stored at the same time the information previously recorded, stored in a database for easy access later. The current GPS information including: time, longitude, latitude, speed, true course and magnetic offset)

ofdm system 1. applyOFDMChannel 2. calculateOFDMBER 3. generateOFDMSignal 4. getOFDMPreambleAndPilot 5. OFDMReceiver 6. OFDMSynchronizationExample 7. OFDMTransmitter 8. processOFDMScopes 9. receiveOFDMSignal

说明：  m序列的生成，包括在有限域GF(p)中的基于不同p取值，不同级数条件下的本原多项式多种选择条件下的m序列生成。(m sequence generation, including in GF (p), the p value based on different, different levels under the conditions of primitive polynomial number of options under the conditions of m-sequences generated.)

一种基于信号二阶四阶矩的信噪比估计方法，该文件中包含该方法的文章以及matlab程序。(This estimation method is based on the signal second-order signal-to-noise ratio of the fourth moment. The file contains a paper and a code.)

说明：  程序中比较了NOMA和OFDMA在容量方面，附带一篇论文，讲的比较详细(The program compares noma and OFDMA in terms of capacity, with a paper, more detailed)