Field bus is a kind of serial digital data communication chain way, it links up to basically control in production field and high levels control course in the automation's control equipment.
现场总线是一种串行的数字数据通信链路，它沟通了生产领域的基本控制过程之间以及与更高层次控制过程的自动化控制设备之间的联系。
This paper introduces digital communication fields for language, graphic, video and other data practical source coding technology.
文章介绍了数字通信各领域对于语言、图文、视频及其它数据的实用信源编码技术。
Data Generator can generate very complicated digital signals. It can be used as programmable data signal source in the fields of communication, radar, navigation, space navigation, and so on.
数据信号发生器可以产生非常复杂的数字激励信号，可为通信、雷达、导航、宇航等领域数字设备提供所需的可编程数据信号。
Digital whiteboards in the study rooms permit the most up-to-date interactive communication and data exchange.
学习室中的数码白板可以连接世界最先进的互动通信和数据交换。
Terminal based on TETRA digital trunking mobile communication system could send and receive status and short data service message, and achieve navigation and location through short data service.
基于TETRA数字集群移动通信系统开发的TETRA终端，通过数据业务可以发送和接收状态消息和短数据业务消息，利用短数据业务完成终端导航定位功能。
Data compressed encoding and uncompressed decoding is one of the key technologies applied widely in digital communication system at present.
数据压缩编码与解压解码技术是目前广泛应用的数字通信系统中的关键技术之一。
Data communication system, method, apparatus and digital interface.
数据通信系统，方法，装置和数字接口。
The main principle is that before data communication, encrypts the message plaintext by using DES mode and encrypts DES key by using RSA mode and realizes the digital signature.
其主要原理是在数据通信前，用DES方法对消息明文进行加密，同时用RSA方法对DES密钥进行加密和实现数字签名。
Data Generator can generate very complicated digital signals. It can be used as programmable data signal source in the fields of communication, radar, navigation, space, and so on.
数字信号发生器可以产生非常复杂的数字激励，可提供通信、雷达、导航、宇航等领域数字设备所需的可编程数据信号。
Second generation mobile communication system (2g) is digital cellular system which can provide low-speed data business.
第二代移动通信系统(2g)是数字移动系统，能提供低速率数据业务。
The cellular digital packet data(CDPD) system is a wireless packet communication system based on analog cellular telephone networks.
蜂窝数字分组数据（CDPD）系统是基于模拟蜂窝电话网的无线分组数据通信系统。
Large amounts of communication bandwidth and memory space is occupied to transmit and store digital hologram on account of its enormous data volume.
由于数字全息图的数据量庞大，其传输、存储占用大量的通信带宽和存储空间。
A digital VHF FH communication system is introduced, followed by its timing, the format of the data transmitted, the synchronization method and the keeping of synchronization.
文中介绍了一种数字化超短波跳频通信系统，并着重讨论了其系统定时、发送数据格式、同步的实现方式、同步保持等关键技术。
The task of this research is to design a high speed data switch network which is used in a base station controller (BSC) of a digital mobile communication system based on CDMA technique.
本课题的任务是为采用CDMA技术的数字移动通信系统设计一个应用于基站控制器（BSC）内部的高速数据交换网络。
In some industrial fields and field operations, it is necessary to separate data acquisition system and digital processing system, so serial communication will be used.
在某些工业现场和野外工作中，数据采集和数据处理需要分开，此时采用串行通信。
This subject comes from a military development project - Digital VHF FH Radio Set, and it is mainly used for the data communication between navy vessels.
本课题来自军事开发项目——数字化超短波跳频电台，主要用于海军舰艇之间的数据通信。
Maximum likelihood sequence detection (MLSE) is broadly use in the digital communication system to estimate the transferred data through the ISI channel with noise.
最大似然序列检测技术被广泛应用于数字通信系统中来估计通过有噪声的符号间干扰（ISI）信道传输的数字数据序列。
Each device on the network can be given sensors to gather data plus two-way digital communication between the device in the field and the utility's network operations center.
网络上的每个设备可以给传感器以收集设备在现场和实用程序的网络操作中心之间的数据加双向数字通信。
The digital image has huge data information, so the algorithm which has high compression ratio and high fidelity rate is urgently needed, taking account of storage cost and communication.
由于数字图像具有数据量大的特点，出于对图像存储成本和图像通信的考虑，良好的图像压缩技术要能够实现高压缩率和高保真率。
In this article, we introduce the digital communication technology which accomplish data transfers in the underwater ship noise test.
本文所介绍的是采用数字通信技术实现船舶水下噪声测量的数据传输。
With the development of digital technology, computer science, communication and network, image data transformation services are widely launched and applied.
随着数字技术、计算机、通信和网络的飞速发展，图像数据传输业务得到广泛地开展和应用。
The utility model relates to a line used in the data communication field, particularly to a digital television line.
本实用新型涉及数据通信领域中的线材，尤其涉及数字电视线。
To reduce the errors of digital communication, the WDTP (Wireless Data Transmission Proof) agreement was proposed for ultrashort wave communication.
针对超短波通信，提出WDTP协议，可减小数据通信误码率。
This paper introduces the design of digital X-ray data storage and communication according to DICOM3.0 and emphasizes the implementation of such modules as the ones for communication and data storage.
本文阐述了针对“数字化X线机”的要求；按照DICOM 3.0通讯标准实现数字化X线机图像数据存储与通讯的设计思想，并着重从基本通讯、数据存储等模块的设计方面介绍了实现方法。
The model not only realizes key management, encrypted communication, digital signature and identity authentication, but also is fit for network system with real time and large data transfer.
本模型不仅适用于实时的、大数据传输的网络系统，而且实现了密钥管理、加密管理、数字签名以及身份认证等功能。
A holographic storage scheme for video data storage and retrieval based on the digital communication model is de-signed.
为了有效抑制噪声干扰，将数字通信模型引入到体全息视频存储方案设计中。
Methods an ARM embedded system was used to achieve data transmission by implementing serial communication with GPS module, Beidou receiver and wireless digital broadcasting station.
方法：采用ARM嵌入式系统，并与G PS模块、北斗接收机和数传电台进行串口通信，实现数据的传输。
Making use of PCMCIA card, the data communication between electronic digital level and notebook computer can be established, and the integral whole technology of combining inside and out.
文章还介绍了电子数字水准仪在沉降观测中的应用，利用PCMCIA卡，可实现电子数字水准仪与笔记本电脑之间的数据通讯，从而实现沉降观测的内外业一体化。
Making use of PCMCIA card, the data communication between electronic digital level and notebook computer can be established, and the integral whole technology of combining inside and out.
文章还介绍了电子数字水准仪在沉降观测中的应用，利用PCMCIA卡，可实现电子数字水准仪与笔记本电脑之间的数据通讯，从而实现沉降观测的内外业一体化。
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