FRFT源程序

该程序计算无线传感器网络中节点的一致性水平。

一份详细的SIP协议的数据流分析的文档，该文档有两百多页，包含的SIP消息的各种情况，内容实用，可供SIP协议的VoIP开发者做一份详细的SIP数据流的分析手册。-a detailed SIP protocol data flow analysis of the document, the document is over 200 pages and contains information of the various SIP, as practical, the SIP for VoIP developers to do a detailed SIP data flow analysis handbook.

ip over dvb 数据结构,用于开发程序时了解具体的数据结构.-ip over DVB data structure for the development of procedures and knowledge of specific data structure.

一个用VC做开发平台，用C语言开发的简单电话查询系统，具有添加记录，修改记录，删除记录，查找记录等功能.能帮助了解文件操作。-a VC with development platform, with C-language development simple telephone inquiry system, with added records, change records, delete records, the records search function. To help understand the operating document.

source codes for point to multi-point Bluetooth transaction in Symbian OS. A good beginning to learn Socket programming in Symbian OS.

Hello these pdf file is an ebbok for simulation wireless communication

该资料详细介绍了移动天线的种类，设计方法，为移动天线工程师的首选参考资料，不可多得-The information described in detail the type of mobile antenna, design methods for mobile antenna Engineer preferred reference, rare

TCP/IP（传输控制协议/Internet协议）：它是许多网络用于通信的通信协议。

无线应用协议（Wireless Application Protocol，WA P）是WA P论坛经过不断努力得到的成 果，它提供了一个业界技术规范，以便开发出适用于各种无线通信网络的应用和业务。WA P 论坛的工作范围就是为各种业务和应用制定一系列的技术规范。无线市场正在快速增长，新 的用户不断增多，新的业务不断涌现。为了使运营商和生产者能够从容面对先进业务、多种 类业务和快速、灵活的业务生成等诸多的挑战， WA P规定了一系列传输层、会话层和应用层 协议。-Wireless Application Protocol (Wireless Application Protocol. WA P) P Forum WA is a result of efforts the results, it provides an industry technical standards, developed to apply to all kinds of wireless communication networks and business applications. WA P scope of the work of the Forum is for various business applications and formulated a series of technical standards. Wireless market is growing rapidly, new users are increasing and new business continued to emerge. To enable operators and producers to calmly face the advanced business, and more types of business fast, flexible service creation and many other challenges, WA P provides a series of transport layer, session layer and application layer protocol.

SYMPCHUNK sets the number of symbols demodulated at once with a constant carrier frequency and symbol timing offset. This is a fundamental decoder parameter that establishes its carrier and symbol timing tracking bandwidth. Set it too low and the demodulator can"t accurately determine carrier frequency and symbol timing on a noisy signal. Set it too high and the demodulator may not be able to track large symbol rate offsets caused by Doppler shift and/or A/D or spacecraft clock errors. Or it might have trouble tracking high rates of change in the carrier frequency due to Doppler acceleration.The current value of SYMPCHUNK is 4*N1 = 512, where N1 = 128 is the order of the convolutional interleaver. 512 symbols is 512 milliseconds at 1000 symbols/sec, giving a frequency/time determination SNR that is 10*log10(512) = 27 dB greater than the Es/N0, not counti