基于访问控制等安全接入基础设施的规范化…

】　本文主要讨论了Modbus 通信协议的R TU 帧格式中常用的错误校验方法,即循环冗余校验法( CRC) 。 提出了Modbus 协议反转CRC 校验的方法,推导了反转CRC 校验快速计算表格,并用C 语言实现了基于快速查 表算法的循环冗余校验程序。-In this paper, we mainly discuss the Modbus communication protocol R TU frame format commonly used in error checking methods, namely, Cyclic Redundancy Check Code (CRC). Modbus protocol proposed inversion method CRC checksum, CRC checksum is derived fast computing inversion table, and C language to achieve a quick look-up table algorithm based on cyclic redundancy check procedure.

OPC服务器的lib开发包，可以使用它快速开发出opc server-OPC server lib development kits, can use it to quickly develop server Oligomeric Proanthocyanidins

控制语音Modem的程序 -Modem program controlling voice

In this simulink model , 16-QAM modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The signal transmitted is recovered at the detector output.-In this simulink model , 16-QAM modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The signal transmitted is recovered at the detector output.

alert 和 timer的示例,初学者可以看看,入门级的示例-alert and the timer example, beginners can take a look at an example of entry-level

c51连接pci rt8139网卡的电路原理图。-pci rt8139 decoder card connected to the circuit diagram.

微软亚洲研究院论文：可扩展视频在CDMA2000-1X网络中传输的性能分析-Microsoft Asia Research Institute Papers : scalable video CDMA2000-1X network transmission performance analysis

QPSK在AWGN传输中的检测性能 QPSK在AWGN传输中的检测性能-QPSK AWGN

MODBUS-TCP C#,读写                                                  

VC界面的示例代码，演示了TAB控件的使用-VC interface code examples to demonstrate the use of the TAB Control