This is accomplished by providing overviews of the necessary background in signal, system, probability, and random process theory required for the analog and digital communications topics. 这些包括了综观必备的基础背景知识,例如讯号,机率,随机程序理论等。这些知识都是类比和数位系统所考虑的一些主题所必须要有的。
High Speed Electro-Absorption Modulators for Digital and Analog Optical Fiber Communications 应用于数字和模拟光通信的高速电吸收光调制器
The first generation analog mobile communications has been going downhill since the digital mobile boom. 随着数字移动通信的迅猛发展,第一代模拟移动通信已呈日趋萎缩的迹象。
It is the shortener of the analog domain in the circuit design that can help to realize the multiple communications standards. 人们希望获得功能多样、灵活性强、可测性强的硬件电路,以实现对不同通信标准多信道信号的接收。
Analog temperature compensation crystal oscillator ( ATCXO) is widely used in electronic equipments such as communications, navigation, radar, mobile telephone, program control telephone, measure instruments etc. 模拟温度补偿晶体振荡器(ATCXO)广泛应用于通信、导航、雷达、移动通信、程控电话、测量仪器等电子设备中。
Original module setup, it follows the trend of PLC, for example, the design of analog signals control and industrial communications network. 模块设置新颖,跟随PLC发展方向,例如模拟量控制和工业通信网络的设计。
Since the mid of 1980's, cellular mobile communications have developed from the first generation analog cellular mobile communications systems to the second generation digital cellular mobile communications systems. Now they have been evolved into the third generation cellular mobile communications systems. 自20世纪80年代中期以来,蜂窝移动通信已从第一代的模拟蜂窝移动通信系统发展到了第二代的数字蜂窝移动通信系统,并正在向第三代蜂窝移动通信系统演进。
A broadband distributed network design is proposed. This network can provide data, real-time digitized voice and analog video communications on a single CATV cable. 本文提出了一种宽带分布式网络设计,该网络能在CATV电缆上同时进行数据、实时数字话音及模拟电视通信。
The system can be divided into five modules, which are display module, movement control module, manipulator module, analog signals control and frequency conversion timing module and industrial communications network module. 在系统中设计了指示显示、运动控制、机械手、模拟量控制和变频调速、工业通信网络五大模块。
Application of High Power Optical Amplifier to Carrier Suppressed Analog Fiber Optic Communications 高功率光放大器在载波抑制模拟光纤通信中的应用
Mobile communication system also has a first generation of analog communications system development to now LTE mobile communication system. 移动通信系统也由第一代的模拟通信系统发展到现在的LTE移动通信系统。
Software radio technology was the realization of a new radio communications system structure in recent years. It is the third revolution in the field of wireless communications following from analog communications to digital communications, from fixed communications to the mobile communications. 软件无线电技术是近几年来提出的一种实现无线电通信的新的体系结构,是无线通信领域继从模拟通信到数字通信、从固定通信到移动通信后的第三次革命。
Intelligent high-speed ball machine is one kind of the important Front-End equipments in the video surveillance system, which is a combination of analog video capture, PTZ control, lens control and remote communications. 智能高速球形摄像机是视频监控系统中一种重要的前端设备,它集模拟视频采集、云台控制、镜头控制和远端通讯等功能于一体。
Design of analog filters is continuous to play an important role in modern communications as well as instrumentation systems. 模拟滤波器的设计,在现代通信及仪器仪表的发展中,一直扮演者非常重要的角色。
Analog to Digital converter is widely used in all aspects with the development of digital technology and communications. 随着数字技术的发展,以及通讯和多媒体技术的快步前进,模数转换器(A/D转换器)被广泛的应用于电子技术的各个方面。
Mobile communication has already experienced big transformation from the analog communications to the digital communication since 1980s it is large-scale invested in commercial. 移动通信从20世纪80年代大规模投入商用以来,已经经历了从模拟通信向数字通信的转变。