-
VC_MFC-Sample1
Microsoft Visual C++ MFC串口通信编程详解,主要介绍了用CreateFile()函数和WriteFile()函数读写串口的实例,以及设置
串口属性的实例.
在工业控制中,工控机(一般都基于 Windows 平台)经常需要与智能仪表通过串口
进行通信.串口通信方便易行,应用广泛.
一般情况下,工控机和各智能仪表通过 RS485 总线进行通信.RS485 的通信方式是
半双工的,只能由作为主节点的工控 PC 机依次轮询网络上的各智能控制单元子节点.
每次通信都是由 PC 机通过串口向智能控制单元发布命令,智能控制单元在接收到正
确的命令后作出应答.
(Microsoft Visual C++ MFC serial communication programming explain CreateFile () and WriteFile () function to read and write the serial port of the instance, and set the serial port attribute instance in industrial control, IPC (generally based on the Windows platform) often need to communicate with the smart meter through the serial port serial communication easy and widely used normal circumstances, the IPC and intelligent instrument through RS485 communication RS485 communication is half-duplex, only as the primary node industrial PC turn polling network intelligent control unit child nodes. every communication from a PC via the serial port to issue commands to the intelligent control unit, intelligent control unit receives the correct command response.)
- 2012-10-11 07:23:02下载
- 积分:1
-
Rayleigh_fading
利用自回归模型产生Rayleigh率落信道(use of regression models have Rayleigh rate charged Channel)
- 2006-09-12 15:27:33下载
- 积分:1
-
DSB
说明: 在AM信号中,载波分量并不携带信息,仍占据大部分功率,如果抑制载波分量的发送,就能够提高功率效率,这就抑制载波双边带调制DSB-SC(Double Side Band with Suppressed Carrier),简称双边带调制(DSB)。(In AM signal, the carrier component does not carry information and still occupies most of the power. If the transmission of the carrier component is suppressed, the power efficiency can be improved. This is called double side band with suppressed carrier (DSB for short).)
- 2020-03-18 17:48:45下载
- 积分:1
-
channel_simulation
信道基本特性的仿真程序,包括小尺度衰落信道(频率选择性信道和时间选择性信道)的仿真,分集接收及误码率的仿真。(Channel basic characteristics of the simulation program. including small-scale fading channel (frequency selective channel and time-selective channel) simulation, Diversity reception and BER simulation.)
- 2007-01-05 08:38:50下载
- 积分:1
-
射线追踪法
大气波导下,电磁波射频追踪研究,利用Matlab进行仿真(Radio Frequency Tracking of Electromagnetic Waves in Atmospheric Waveguide)
- 2021-01-06 19:58:53下载
- 积分:1
-
Cross-layer-
一种基于遗传算法的OFDMA系统的跨层资源分配(Cross-layer resource a genetic algorithm-based allocation of OFDMA system)
- 2013-12-19 13:24:17下载
- 积分:1
-
c03
该程序实现水声信道的模拟方法及性能分析,提出了一种信的水声信道模型(The program implements underwater acoustic channel simulation methods and performance analysis, presents a letter of underwater acoustic channel model)
- 2020-07-04 05:40:02下载
- 积分:1
-
QPSK_CMA of SMF
说明: 单模光纤中相干接收QPSK信号应用了CMA算法的简单DSP示例,自带vpa仿真数据。(A simple DSP example of CMA algorithm is used to receive QPSK signals coherently in single-mode optical fibers, with VPA simulation data.)
- 2020-12-15 22:09:14下载
- 积分:1
-
802.16标准
802.16E的协议文档,完整版本。其中包括3个版本。(802.16E protocol document, full version.)
- 2020-06-19 02:40:01下载
- 积分:1
-
IEC104NASlave
说明: C++开发104协议,支持主从站。支持多客户端连接(C++ develops 104 protocol to support master and slave stations. Support multi-client connection)
- 2020-06-21 04:20:02下载
- 积分:1