瑞丽信道仿真

通过串行口访问Modbus现场控制网络,概述了modbus相关内容-Modbus serial port access through the on-site control network, an overview of relevant content modbus

本源代码是一个邮件收发系统，可以实现了简单的文件接受、发送功能-source code is a mail system that can achieve a simple document acceptable, this function

sntp client example sntp client example sntp client example sntp client example -sntp client example sntp client example sntp client example sntp client example sntp client example sntp client example sntp client example sntp client example

visual c++ 下编译完成的modem语音实例，可以做普通语音测试，modem必须带语音功能 -visual c++ completed under the compiler example voice modem, you can make ordinary voice test, modem with voice capabilities must

一个基于dialogic板卡的测试程序。-a board based on the test procedures.

OFDMA, Orthogonal Frequency Division Multiple Access is a broad band communication method. Here channel estimation is more crucial. Based on the FFT size used for OFDM transmission method that many number of channel co-efficients are to be estimated and received signals are to be equalized using this co-efficients. Various methods trying to improve the performance and fastness are proposed. As part of master thesis various methods have be studied and evaluated using the WiMAX 802.16 system.

QR 二维码符号规格（不包括空白区）21×21 模块到177×177 模块（版本1到40，每版本符号每边增加4 个模块）。每个符号的数据字符数（最大规格的符号—版本40-L）数字数据为7089 个，字符字母数字数据为 4296 个字符，8 位字节数据为2953 个字符，日本汉字数据为1817 个字符，中国汉字数据为21008 个字符 。[21]Marks & Spencer 是第一家在英国包装市场上使用这种编码的公司。零售商介绍到在今年的早些时候，他们已经在所有果汁包装上使用这种编码上进行了8 周的试验。顾客能通过扫描解码得到每天提供的包括产品的趣闻，细节等信息。Marks& Spencer 高级包装技术师马克思高尔(Mark Caul)说:“QR 二维码是一个不靠增加包装尺寸或者标签空间而和顾客进行交流的梦幻机会。通过使用移动手机技术，能获得这种产品的原始故事或者在这款包装背后的故事，更有甚者，能获得使用须知的电影视频，这一切的一切都能在手机屏幕上剪裁播放。” Mar

空间无线信道建模程序matlab，考虑了多径延迟，多普勒效应，信号的角度扩展（拉普拉斯分布），MIMO，可以产生MIMO信道矩阵。-Spatial channel modeling procedures matlab, taking into account multi-path delay, Doppler effect, the signal point of view the expansion of (Laplace distribution), MIMO, can generate MIMO channel matrix.

本程序采用了以太网编程，是客户端，可以在任何PC机上运行。-the adoption of the Ethernet programming, client, in any PC running.

IEEE STD 754 的格式说明和算法的C语言实现-IEEE STD 754 and the format of the C language algorithm