对基本调制解调进行了详细的阐述,包括BPSK,QPSK,16QAM,64QAM

litwizi j2me

应用背景应用于楼宇对讲设备管理，中心管理，呼叫对讲，视频查看等等。关键技术视频查看，语音对讲，基于天敏视频采集卡SDK3000开发的视频监控系统。采用串口通信将硬件系统和软件系统进行连接。数据的传输方面我们做了细致的优化，达到了报警信息和对讲功能的实现更加快捷。实现中心监控门口和围墙机，室内机对中心的呼叫与监控，门口机和围墙机呼叫中心并自动开启监控。系统包含：小区结构、呼叫对讲、 报警监控、信息发布、门禁管理、巡更打卡、信息查询、系统设置以及智能社区等功能模块。

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.

中文RFC文件，无需翻译，对学习很有帮助！

C语言窗口通信，利用FPGA来实现和电脑的农信-C-window communication

RFC3023:XML媒体类型

误码率计算程序，可以实现简单的误码率计算。对初学者有用-bit error rate calculation program, can achieve a simple error rate. Useful for beginners

本文件内第三代合作伙伴计划 （3GPP TM），已经制定，并可能进一步阐述为 3GPP 的目的。 本文件尚未经过任何审批程序由 3GPP 组织伙伴并不予以实施。 此规范是为未来的发展工作范围内的 3GPP 只提供的。组织伙伴接受供任何这种规格的使用不承担任何责任。 规格和 3GPP TM 系统的执行情况的报告应获得通过 3GPP 组织伙伴的刊物办事处。

在本计划中，将考虑高度分散的环境；

这是一份介绍SIP协议的PPT，详细介绍了SIP协议，可以帮助SIP开发人员理解SIP协议各个消息中的头域，以及应用流程。-this is a point for the sip, it introduces the protocol of sip, it can help for programer for understanding the part