QPSK constellation diagram of the realization and hope that everyone has good re...

介绍opnet，里面的习题丰富，这是作者多年总结出来的结果。-Introduction opnet, which enrich the exercise, which is the author summed up the results of many years.

云台解码器派尔高P协议，为原版协议，开发人员请注意其最后位校验，为异或校验，不是求和校验，这里很容易发生错误，我们在开发产品的时候搞错，头很大-PTZ decoder Pelco P protocol for the original agreement, the developer to draw your attention to the last bit checksum for the XOR checksum, not sum check, here are prone to error, we made a mistake when developing products , the first great

我们自己创建各个的头部,系统只是把它们发送出去. 在实例中,由于我们要修改我们的源IP地址, 所以我们使用了setsockopt函数,如果我们只是修改TCP数据,那么IP数据一样也可以由系统来创建的. -To create all our own head, the system only to send them out. In the example, because we have to modify our source IP address, so we use the setsockopt function, if we just amend the TCP data, then the IP can also be from the same data system to create the.

I=8，Fs=25KHz时的8个调幅（AM）信号的信道化发射机仿真结果，8路信道化软件无线电发射机MATLAB具体程序如下！-I = 8, Fs = 25KHz at 8 AM (AM) signal of the channel transmitter simulation results, 8-way channel software radio transmitter MATLAB following specific procedures!

VB写的通过串口与考勤机连接通讯的程序-VB written attendance through the serial port connected with the communication procedures

利用h323协议和OPENH323开源库开发而成-H323 use agreements and OpenH323 open source database developed

通信电路课程设计计划-courses communication circuit design plan

多线程串口调试工具，全部源码，可记录，文本或二进制显示-Serial multi-threaded debugging tools, all source code, can be recorded, text or binary display

用visual c++编写的MFC程序，可以实现PC对PC的通信及PC对单片机的通信。-Visual c++ using the MFC process to prepare, you can achieve PC to PC and PC communication on single-chip communications.

串口之间通信的源代码。使用C++开发，对初学者有用。