an article about multi

ErrorProbabilityofMPSKOFDMImpairedbyCarrierFrequency OffsetinAWGNChannels

OPNET仿真实例，有助于初学者的快速学习。-OPNET simulations help beginners learn fast.

LDPC已经成为现在很流行的FEC码，这是一篇讲述QC-LDPC编码的经典论文，作者是IEEE终身会员林舒，对目前常用的QC-LDPC编码作了详尽的描述-LDPC has become very popular now FEC code, this is a QC-LDPC code on a classic paper, the author is IEEE Life Member LIN Shu, on the current commonly used QC-LDPC coding detailed description of

自己写的用于modbusrtu的通讯，可以连接各类变频器温控仪等，而且是完整的工程文件，可以修改做他用-himself wrote for modbusrtu communications, can be connected to various types of converter temperature control instrument, but it is a complete engineering documents can be amended so he

LIN总线是方兴未艾的MCU间通信工具.在系统中引入LIN总线,可以达到成本,性能和可靠性的一致要求.-LIN bus is ascendant among the MCU communications tool. The introduction of the system LIN bus, to achieve cost, performance and reliability at the unanimous request.

sip的一个简单的ivr实现，在国内关于sip的ivr实现代码不多。-sip of a simple IVR realized, in the IVR sip of code to achieve little.

about wireless network

（基于H.323协议族）voip综述及常用算法实现。-(Based on the H.323 protocol suite) voip Summary and commonly used algorithm.

A self-designed control of PC parallel port communication is introduced in this paper.Taking advantage of the MFC ActiveX technology, it is developed in Visual C++ and offset the scarcity of the control of PC parellel paort communication. An example of frequency measurement shows the detail procedure and application of the control.

一个用VB实现的串口通讯的例子，在按16进制发送的程序中很在参考价值-a VB serial communications, for example by sending the 16-band procedure is the reference value