基于不同层面的流量控制专题（QOS）（华为技术文档）

AAC 音频编码标准 最新的-AAC 音频 ?嗦??????钚碌

QExtSerialPort ：多个开源类集合，提供交叉平台的串行端口操作功能: 请用 winrar 解压-QExtSerialPort: more than collection of open-source categories to provide cross-platform serial port operation function: Please use winrar Decompression

短信开发控件，支持西门子，诺基亚，使用串口线或者红外线连接-SMS Development Control and support of Siemens, Nokia, the use of infrared or serial line connectivity

用vb6实现与plc通信的Beckhoff实例

点对点聊天工具的客户端，在写的过程中我也加了点注释，应该有助于理解-peer-to-peer chat client, in the process of writing I also added a footnote should help you understand

产生随机数．产生的随机数服从（０，１）正态分布-generated random number. The random number obedience (0,1) normal

引入PEG（Progressive-edge-growth）算法来构造适合线性时间编码的LDPC校验矩阵，译码时采用简化最小和Min-Sum译码算法实现简化译码．仿真结果表明，该方法能够构造适合LDPC码的线性时间编码的下三角校验矩阵日，并且用此方法构造的LDPC码性能非常接近原来PEG算法构造的LDPC码．同时通过采用最小和Min-Sum算法降低译码复杂度．-The introduction of PEG (Progressive-edge-growth) algorithm to construct suitable for linear time encoding of LDPC check matrix, decoding simplified when the smallest and the Min-Sum decoding algorithm decoding simplified. Simulation results show that this method can construct LDPC codes suitable for linear time encoding on lower triangular calibration matrix, and constructed using this method the performance of LDPC code is very close to the original PEG algorithm constructed LDPC codes. At the same time through the use of the smallest and the Min-Sum decoding algorithm to reduce complexity.

这是一个opc server例子，包含源代码，可以免费下载-it is an sample of opc server

TOP PORT (USB) 调试接口说明 本接口是利用PL-2303HX的USB转RS232的接口芯片设计实现了一个TTL(5V)的RS232串口，并且利用了PL-2303HX的2个GPIO口软件模拟了一个低速的I2C总线.该接口由USB接口提供5V电压，可自带2Kbit(24C02)数据备份EEPROM (单独读写通道,不占用I2C总线地址)。并可对外提供小于250mA的5V电压。尤其适合WIN-XP以后的没有并口和串口笔记本电脑。整机成本不到￥20RMB。 -TOP PORT (USB) interface debugging of this interface is the use of PL-2303HX the USB to RS232 interface chip design to achieve a TTL (5V) of the RS232 serial port, and use of PL-2303HX the two GPIO port software simulation of a low-speed I2C bus. The interface from the USB interface to provide 5V voltage, can bring their own 2Kbit (24C02) data backup EEPROM (separate read and write access, do not occupy I2C bus address). And may provide less than 250mA of 5V voltage. WIN-XP is particularly suitable for subsequent parallel and serial no notebooks. Machine costs less than ￥ 20RMB.

这是阿罗哈网络模拟在 Omnet + +。它是一种基本的通信协议，在网络中使用。使用这个协议的主要目的是传输介质访问方案中同时检测介质的可用性。它适用于确认原则。 每当数据包被传递从来源到目的地和按目的地正在发送确认。如果确认在是传播时间的两倍的时间收到由源，然后结束通信。否则源发送该数据包再次直到它交付。