H263通信规范

交通控制信号机与车辆检测器的通信协议国家标准，描述了无线车辆检测器与交通控制信号机之间无线通信的行业标准，方便不同厂家产品之间的兼容。

psk技术实现，并有详细的程序，有助于通信软件的开发-psk technology, and the detailed procedures, contribute to the development of communications software

初学习滤波器的有关知识，给出一个简单的卡尔曼滤波的matlab程序。vb语言实现的卡尔曼滤波源程序 （没有测试，输出部分要配合相应的过程）-early learning knowledge of the filter, is a simple Kalman filtering Matlab procedures. Vb language Kalman filtering source (no test, the output corresponding to tie part of the process)

Serial communication

自己写的一个串口程序 串口的使用读写-Their own written procedures for a serial use the serial read and write ...

一个最新版本的SIP协议栈，大家可以看看，学习一下-an updated version of the SIP protocol stack, we can look at, and study how

20050417112235232simple.c，简单的C程序设计开发技术-20050417112235232simple.c, a simple C program design and development technology

sim 文件系统In addition, its quality of service reduces because of reliance on traditional circuit-switched network elements. At that former time, people hoped to build a based system, which could access a centralized server network, would always have access to the latest traffic information and could provide web links. What this trend is a momentous request for mobile services based on high-speed packet data transfer. Hence, a new standard, GPRS, came into being in order to fill people’s bill.-sim file system In addition, its quality of service reduces because of reliance on traditional circuit-switched network elements. At that former time, people hoped to build a based system, which could access a centralized server network, would always have access to the latest traffic information and could provide web links. What this trend is a momentous request for mobile services based on high-speed packet data transfer. Hence, a new standard, GPRS, came into being in order to fill people s bill.

正交频分复用 （OFDM） 是一种通信技术，通信信道分为同样间隔的频段的数目。副载波携带用户信息的一部分是在每个波段中传输。每个子载波与每一个其他副载波，从常用的频分复用 （FDM） 鉴别 OFDM 是正交 （相互独立）。频分复用 （FDM） 是一种技术，通过单一的传输路径如电缆调制解调器或无线系统同时传输多个信号。每个信号传播在其自身独特的频率范围内 （载波） 调制的数据 （文本、 语音、 视频等）。正交 FDM （OFDM） 扩频技术将数据分布在一大批以精确的频率间隔的载体。这种技术中的这个间距提供"正交"以防止解调器看到自己以外的其他频率。

一个手机副屏的时钟程序，基于OSE操作系统，可以看到实现的完整代码，但没有环境是不能编译运行。-a phone screen clock procedures, based on the OSE operating system, we can see the realization of a complete code, but no compiler environment is not running.