USB总线接口芯片CH375的介绍，对于进行USB开发的人都很大的指导作用。...

这是一个使用modem拨号上网的程序，可以使用，在gprs方式下也可使用，是用gprs通信的很好的例子程序-It is a modem dial-up procedures can be used in GPRS mode also can be used. GPRS communication is a good example of procedures

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windows下的多线程串口通程序-windows of a multi-threaded process Serial

TCP 聊天程序客户端，详细讲述开发过程-TCP client chat program, described in detail the development process

free hardware ip core about sparcv8,a soc cpu in vhdl-free hardware ip core about sparcv8. a soc cpu in vhdl

ComPort Library是一套用来编写串口通讯程序的控件。它包含5个控件：TComPort, TComDataPacket, TComComboBox, TComRadioGroup and TComLed。利用这些工具（当然还有DELPHI开发环境），你能更快更简单地开发串口通讯程序。包含Delphi上下文相关的帮助文件和源代码（4000行）。功能无限制。源代码：包含。适用语言：CB3 CB4 CB5 D3 D4 D5-ComPort Library is a set of procedures for the preparation of serial communication control. It contains five controls: TComPort, TComDataPacket, TComComboBox, TComRadioGroup and TComLed. Use of these tools (of course, DELPHI development environment), you can faster and easier development of serial communication program. Delphi contains context-sensitive help files and source code (4000 lines). Features unlimited. Source code: contains. Applicable language: CB3 CB4 CB5 D3 D4 D5

jake接收机的MATLAB的实现程序， 这个程序主要实现JAKE接受机-the programme of jake receiver with matlab, be completed with jake receiver

呼叫阻塞率的计算和仿真：在时间轴上考虑。无论阻塞与否，下一呼叫到达时刻为当前呼叫到达时刻加上服从参数为1/λ的指数分布的呼叫间隔时间。一个呼叫到达时只需要判断呼叫的到达时刻和各个信道服务完成时刻的先后：如果前者比后者中任意一个大，说明至少有一个信道服务完成时刻比此呼叫到达时刻早，即此信道空闲，此时呼叫成功，应该先把此信道下一个服务完成时刻置为当前呼叫到达时刻，再加上服从参数为μ的指数分布的服务时间；反之，如果前者比后者中全部都小，说明所有信道在此呼叫到达后才会结束服务，即当前忙，此呼叫被阻塞掉了-call blocking probability calculation and simulation : the time frame to consider. Whether or not blocked, the next call arrived at the present moment to call time arrived with a subordinate parameters/ index distribution of the call interval. A call arrived only judgment call and the arrival time each channel service has completed a moment : If the former than the latter an arbitrary, and at least one channel is completed service calls than this moment arrived moments earlier, that this channel is idle, call this success, should first get here Channel a moment of complete services for the current call home arrival time, coupled with the parameters obey the exponential distribution services; Conversely, if the former than the latter, all

modbus协议，中文文档，讲解十分详细，方便参看查询-modbus protocol, English documents, explaining in great detail, see the convenience inquiries

数据结构的课程设计，编程做一个手机通讯录！-Curriculum design, data structures, programming to make a cell phone address book!