rayleigh&MIMO

在OPNET上搭建场景，仿真接入算法，使用的是S-ALOHA接入算法，以仿真吞吐量、时延等性能(Build a scene on OPNET, simulation access algorithm, using the S-ALOHA access algorithm to simulate the throughput, latency and other performance)

一个在DOS下实现的利用串口的文件传输程序，因为用到了软中断可能在XP下不能正常使用。(One in use under DOS serial file transfer process, because the soft interrupt may be used in XP should not under normal use.)

提供通讯录成员的查询、增加、更新及删除等功能。(Provide contacts membership query, add, update, and delete functions.)

雷达信号生成函数，分析雷达多脉冲信号啊 雷达信号生成函数，分析雷达多脉冲信号(Radar signal generating function, analysis of radar signals ah multi-pulse radar signal generating function, analysis of multi-pulse radar signal)

matlab，QPSK,通信系统，调制，解调，信号波形，频谱(matlab, QPSK, the communication system, modulation, demodulation, the signal waveform, the spectrum)

轻松抓图袖珍版,可以帮你轻易抓取屏幕上任意你想要抓取的活动窗口,按F3键将选中图像复制到系统剪切板中,方便你随时,随地粘贴(Easy to grab the picture pocket version, can help you easily grab any screen you want to grab the active window, press F3 button will be selected image copy to the system cutting board, easy to you anytime, anywhere paste)

OFDM系统在QPSK与16QAM调制下，误码率比较程序，希望对大家有一定用处(OFDM system with 16QAM QPSK modulation, error rate procedures, We hope to have some use)

如果你第一次使用D12，请先阅读该文档，将会对你的编程有很大帮助。(if you use the PDIUSBD12 first time ,please read this file first.)

说明：  一个4*8天线数的mimo仿真程序，采用16QAM调制解调，在平坦衰落环境下的误码率情况(a 4* 8 the number of MIMO antenna simulation program using 16QAM modulation and demodulation, the decline in flat environment of the BER)

CCK通过AWGN信道时的误码率曲线，已通过上机验证（CCK调制和利用快速沃尔什变化解调）(CCK through AWGN channel, BER curve has passed-on authentication)