高速传输

According to the high need of multi-channel cardiograph testing instrument for the wide bandwidth of data-transmitting interface of PC interface, adopted USB2.0's 480Mbps high-speed data-transmitting mode, described a data-transmitting interface design of USB2.0 which is based on microprocessor ADSP2188 and USB interface chip CY7C68001 of EZ-SX2 series, and make a detail dissertation about the key technique of the design in hardware and software .

针对多通道心电测试仪对PC机接口提出的高数据传输带宽的要求，采用USB2.0规范推出的480Mbps的高速数据传输模式，介绍了一种以数字信号处理器ADSP2188为外部微控制器，以EZ-SX2系列USB接口芯片CY7C68001为接口控制芯片的USB2.0数据传输接口设计方法，并对软硬件设计上的关键技术作了详细的论述。

Fibre Channel is a high-performance transmission protocol, which has characteristics of high-speed and long-distance transmission.

光纤通道是一种高性能传输协议，它具有高速性和远距离传输等优点。

The enhanced direct memory access is an important technology used for fast speed data transfer in data signal processor.EDMA is able to move data block independent of CPU, and this capability meets real-time image processing.

增强型直接内存存取是数字信号处理器中用于快速数据交换的重要技术，具有独立于CPU 的后台批量数据传输的能力，能够满足实时图像处理中高速数据传输的要求。

In the first section of hardware circuits part, the design principle, project and application of the data transmission board based on the normal electrical chips are discussed in detail. The data transmission board is used to the way of synchronizing transmission that is a particularly novel way in the Real-time SAR Image Data Process and Transmission System and can nearly double the transmission ratio.

在硬件电路设计方面，本文首先讨论了基于普通芯片的专用数据传输接口板的设计和实现，该接口板采用同步传输的工作方式，比原系统中接口板的传输速率提高了近一倍，并且具有单机调试的能力，已用于"九五"灾害监测子系统中地面数据接收站和高速图形处理工作站之间的数据传输。

This paper presents synchronous FIFO integrated in FPGA which can achieve the function of high-speed buffer and bus synchronous data transmission by high-speed reading-writing operation of the FIFO.

本文提出一种基于FPGA片上集成的高速FIFO实现采集数据的高速缓存并通过对高速FIFO的读写操作实现总线同步数据传输，提高数据的传输速率。

This high-speed element is used as a "scratch pad" to temporarily store data and instructions that are likely to be retrieved many times during processing.Processing speed can thus be improved.Data may be transferred automatically between the buffer and primary storage so that the buffer is usually invisible to the application programmer.Once found only in large systems,cache memory is now avaliable in some of the tiny microprocessor chips used in personal computers.

该高速存储器可用作"便笺"，暂时存放那些在处理中很可能多次查询的数据和指令，这样可提高处理速度，由于数据在这个高速缓冲器和主存之间可自动传输，所以该告诉缓冲存储器对应用程序员来讲通常是不可见的，过去只在较大的计算机系统中才有的高速缓冲存储器，现在在一些用于个人计算机系统的很小的微处理器芯片中也采用了。

In contrast, assembly of mobile hard disk, although the manufacturer can also install high-speed hard disk to your hard disk box, but due to the lack of synchronization control chip technology and can not interface with the hard drive to eliminate the bottleneck between the speed, so that assembly of a "high-speed mobile hard disk" can not truly reflect the advantages of high-speed hard drive, it is very easy because the interface with the speed difference between the hard disk, and there waiting for data transmission, data underrun issues.

反观组装移动硬盘，虽然其制造者也能将高速硬盘安装到硬盘盒中，但由于缺乏同步控制芯片技术而不能消除接口与硬盘速度之间的瓶颈，这样组装出来的"高速移动硬盘"并不能真正体现出高速硬盘的优势，倒是很容易因为接口与硬盘之间存在速度差，而出现数据传输等待、数据欠载等问题。

The results are the information transmission capacity of communications essentially lies on information carrier and information transmission mode,and on nowadays communication modes the information carries only by use of the space degree of freedom of signals and the information transmits only by use of the undulatory property of signals.

研究结果表明，通信系统的信息传输能力由信号承载和传输信息的方式决定；现有电子通信系统中信号处于低速宏观态，仅利用空间自由度承载信息和波动性传输信息，香农公式定量描述了该状态中信号的信息输运能力；高速态、微观态或介观态信号的信息输运能力有可能突破香农公式限制。

This article elaborated one kind of automated test system used to test the data transmission system on the satellite.Now adays,the data transmission system has a greater capacity and higher transmission speed.This test system makes the function and performance index test more effective.

在现今星基遥感探测技术高速发展的大环境下，为更加有效地检测大容量、高速率的卫星数据传输系统的各项功能、性能指标，设计了基于空间数据系统咨询委员会建议的高级在轨系统高速遥感卫星数据传输地面自动化测试系统。

Favor salt , deep weir , broad favor , favor River 4 express highways transfixion Huizhou City entire boundary , construction ," five horizontal stroke three longitudinal " express highways nets acceleration already starting construction form very much littoral high speed of favor , mat made of tabernaemontanus bulrush favor high speed;Huizhou City harbor be country kind of harbour , be that Beijing-Jiulong Railway is the most convenient and rapidest go out of Haikou;That Huizhou City conveys the changeable electricity ability is that the whole nation host is changed into capacities surpass one of 53 cities get rich going ahead 2 million kilovolts , already become east Guangdong area electric power key position;Huizhou City is littoral chinese southeast communication transmission key position , owns the advanced modern times information express highway network

惠盐、深汕、广惠、惠河4条高速公路贯穿惠州全境，惠深沿海高速、莞惠高速已动工建设，&五横三纵&高速公路网加速形成；惠州港是国家一类港口，是京九铁路最便捷的出海口；惠州输变电能力是全主变容量超200万千伏以上的53个城市之一，已成为粤东地区电力枢纽；惠州是中国东南沿海通信传输枢纽，拥有发达的现代信息高速公路网络。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。