帧格式

IEEE802.11e帧格式中的QoS增强

The Frame Format Enhancement for QoS in IEEE 802 . 11e

文中介绍了PLC通信协议的基本帧格式，分别提出了PLC和计算机的通信设计方法。

This paper introduces the basic frame format of communication protocol of PLC and provides the design methods of communication of PLC and computer individually .

本文还设计了基于OFDM的突发式宽带卫星通信的一整套同步方案，根据对前述算法的仿真比较，给出帧格式。

Besides , the whole synchronization schemes for the OFDM based Broadband-satellite communication system are designed .

讲述了如何编写断言对RF模块的信号级发送接收需要遵守的帧格式和时序的要求进行监测。

Written assertion for the frame format and timing requirements of the RF module to send and receive signal which required to comply with for monitoring .

通过定义主从机读操作的两次握手命令-应答帧格式及其参数改写子VI实现数据采集。

Data acquisition was realized by defined two times of handshake order or response frame format and VI of read-write operation between host and slave computers .

通过对改变后的帧格式和服务时间的分析，证明SubmergeFrame方法可以提高网络利用效率，增强系统稳定性。

Based on the analysis of frames and serving time , it 's proved Submerge Frame method can improve efficiency of network and stability of system .

介绍了ALOHA多址接入技术，讨论了自动重传控制、冲突解决，基于单星的准实时通信以及MAC层帧格式的问题。

Introduces ALOHA access protocol , ARQ technology , contention resolution , Quasi-realtime telecommunication based on single LEO satellite and MAC frame structure .

在GFP（GenericFramingProcedure）封装技术中讨论了GFP的帧格式和定帧方法、成帧映射和透明映射的两种工作方式。

Frame format and frame location method are discussed in GFP ( Generic Framing Procedure ) encapsulation technology , and framed mapping and transparent mapping are also discussed .

月地信道方面，选择了基于HDLC的改进帧格式，并采用Turbo码作为纠错编码；

In the aspect of communication in lunar ground , it uses the improved frame basing on HDLC , and adopts Turbo as error-correction coding .

主要分析了BF、KMP、BM这几种模式匹配算法，详细分析了以太网、TCP/IP协议的帧格式。

Explain three pattern matching algorithm : BF , KMP and BM algorithm , and explain the structure of TCP / IP protocol detailed .

由帧格式分析了FDL的编码效率与有效数据传输率；

Encoding efficiency and effective data transmission rate of FDL are calculated according the frame format of FDL .

根据系统的功能，设计了RS-485应用层通信协议，包括字节格式和帧格式，并给出了各个部分的含义；

According to the system 's functions , RS-485 application layer protocol is designed involved byte format and communication frame format , and the concern of each component is defined ;

本文设计了在基于以太网数据帧格式的PON中实现时间标签测距和环路延时补偿以及ONU上行发送窗口的控制功能的方案。

It puts forward an Ethernet frame based design of time stamp ranging and RTT compensate , as well as the uplink transmission window control .

介绍上位机与欧姆龙V600系列RFID控制器串行通信连接方式、通信命令和通信数据帧格式。

The communication link way , communication commands and communication data structure between host computer and OMRON V600 Series RFID controller are introduced .

为了可以在串行线路上运行TCP/IP协议栈，又介绍了针对串行线路的具有IP分组的标准封装格式的SLIP协议，除了介绍SLIP协议的数据帧格式之外，还指出了SLIP协议的缺陷。

To run TCP / IP protocol stack over serial links , the paper imports the concept of SLIP which can encapsulate standard IP packet over serial link . Meanwhile , the paper also points out several limitations of the SLIP .

接口电路设计的重点是数据的传输，物理层的线路比特率，数据链路层的帧格式，线路编码，位差错校验，同步以及时序，光纤链路延时测量等都是在FPGA中实现的。

Interface design focuses on data transmission , the line bit rate , frame structure , line coding , synchronization and timing , bit error correction / diction , link delay accuracy and cable delay calibration was all finished in FPGA chip .

第4章介绍系统通信中使用的TCP/IP协议和GPRS技术，论述电力负荷管理系统的通信特点、通信方式和组网方案，阐述系统数据传输规约的层次模型和帧格式定义。

The forth chapter introduces the TCP / IP protocol and GPRS technology dissertates the communication features , communication mode and networking programme of the power load management system , describes the data transmission protocol and frame format .

通过数据监视、分析的方法，找出了西门子S7-200系列PLC的PPI协议关键帧格式，可用于上位机、现场设备与PLC之间通讯。

By way of data monitor and analyze , found out the keyframes format of PPI protocol on Siemens S7-200 series PLC , it can be use in communication of upper computer , field device with a PLC .

远程电能校准系统采用IEC60870-5-104通信协议制定通信数据包的帧格式以及通信传输规则，实现了远程电能校准功能，采用ASP技术实现数据共享系统的Web数据共享功能。

The data frames and communication rules are designed in accordance with the IEC 60870-5-104 transmission protocols to realize the remote electric power meter calibration function . The data-shared function is performed using the ASP technique .

根据所构建的基于RS-485能源计量系统的需要，设计了RS-485应用层通信协议。该协议主要包括字节格式、帧格式及数据的表示。

According to the practical requirement of a certain producing enterprise based on RS-485 bus , the communication protocol of RS-485 which includes byte format , frame format and the expression of data was designed .

703的基础上，设计出MPEG-2TS流到E2非成帧格式数据流的转换方案，本文将对基于FPGA的实现的原理和实现方法做一些介绍。

703 protocol , the schemes to convert MPEG TS stream to non & frame E2 stream are introduced , followed by a FPGA oriented implementation , including its principles and solutions .

详细进行了OFDM系统的信道估计模块的理论分析和各种实现方法的比较，给出了仿真结果，并据此定出了本OFDM系统所用的信道估计算法以及帧格式详细参数设置。

Detailed analysis of channel estimation model of OFDM system and compassion between several implementation scheme are presented , including the simulation result . According to these , the channel estimation algorithm and the detailed transmitting frame structure parameters are proposed for the application .

介绍了PCM码型定义和帧格式，阐述了该方案的结构框架和设计方法，并结合实例和实测波形，说明PCM编、解码器的功能实现过程。

Describes the definition of PCM code and its frame format ; introduces the design scheme about structure and method . Combined with the instance and surveying waveform , the paper shows the realizing process of PCM encoding and decoding .

介绍了系统的工作原理和抗干扰措施，其中对DM码的选择、帧格式码的确定以及位同频信号的快速提取和时域滤波等内容作了详细叙述。

The working principles and interference free measures of the system are introduced , among which the selection of DM code , determination of frame form code , quickly picking up of bit alignment signals and time domain filtering , etc. are described in detail .

通过分析GPRS的应用技术来解决系统中通讯双方的数据传输问题，确定传输帧格式、制定相应的传输协议，实现传输过程，实现双方通讯。

We achieve the aim of communication between the two sides by solving data transmission problems between both sides of communication system , establishing the format of transmission frame and the corresponding transmission protocol , realizing the transmission , and analyzing the application technique of GPRS .

提出了一种新的高速串行传输接口的设计方案，改进了Aurora协议数据帧格式定义的弊端，并采用高速串行收发器RocketI/O，实现数据率为2.5Gbps的高速串行传输。

We present a new solution on the design of high-speed serial transmission interface , which can achieve a 2.5 Gbps data transmission rate by improving the data frame format of Aurora protocol and using high-speed serial transceiver " Rocket I / O " .

本文在深入分析MAC协议退避算法的基础上做了以下工作：首先，针对MILD算法复制机制的漏洞提出改进方法（对MAC控制帧格式的修改），并模拟了改进前后两种机制的吞吐量；

This dissertation firstly has deeply analysed the different backoff algorithms of MAC protocol based on IEEE 802.11 DCF model and then has done the following work : At first , we propose a new method to improve the copy mechanism of MILD algorithm and simulate the improved mechanism .

在介绍以太网体系结构的基础上，重点分析了以太网基本帧格式和千兆以太网物理子层及其功能，论述了发送时钟合成与接收时钟恢复技术；详细描述了AES算法及其加、解密流程。

Based on the Ethernet architecture , we analyze the Ethernet frame formation and sub-layer with its function of 1000M Ethernet . Besides , we describe the sending clock composition and receiving clock recovery technique , AES algorithm and encryption / decryption process . 3 .

软件部分以分析T.30规程建议的通信过程和HDLC数据帧格式为基础，分阶段完成了对传真信号采集的软件实现。

Based on the analysis of communication process in T.30 and data frame of HDLC , the software part achieves the software implementation of the facsimile signal collection by phases .

针对无线数据传输信道的特点，对遥测数据和遥控命令帧格式做了探讨并对遥控命令进行BCH编码，然后对整体软件结构做了设计。

For the channel characteristics of wireless data transmission , we format the frame of telemetry data and the command of remote control and code the remote control command by BCH . Then design the whole software architecture .