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- analog digital network 模拟 数字网络
- Distributed control system (DCS) belongs to analog digital hybrid system, field control system (FCS) is an automatic system with multiple step network. 集散控制系统(DCS)多为模拟数字混合系统,现场控制系统(FCS)是分步式网络自动化系统。
- Digital networks are considerably less subjected to noise than analog networks. 数字网络不象模拟网络那样易受噪音干扰。
- CCIS occurs over a separate packet switched digital network. 独立的分组交换数字网络中使用CCIS。
- Audio waves can be converted to digital form by an ADC (Analog Digital Converter). An ADC takes an electrical voltage as input and generates a binary number as output. 声波可以通过ADC（模拟数字转换器）转换到数字形式，ADC采用电压作为输入并产生二进制数作为输出。
- So B-ISDN (Broad Integrated Service Digital Network) comes into being. 于是产生了B-ISDN (宽带综合业务数字网)技术。
- Today, signaling systems transport not only voice, but also video and data signals throughout both analog and digital networks. 现今，信令系统传输的不仅仅是语音，而且还包括视频以及整个模拟和数字网络中的数据信令。
- Today,signaling systems transport not only voice,but also video and data signals throughout both analog and digital networks. 现今，信令系统传输的不仅仅是语音，而且还包括视频以及整个模拟和数字网络中的数据信令。
- This paper introduces a method for using general analog digital converter to consist of high speed A/D system in the design of Time Domain Reflector (TDR). 文章介绍了在时域反射仪 (Time- Domain Reflector,缩写为 TDR)设计中 ,采用普通的 A/ D芯片构成高速模 /数转换系统的具体方法
- integrated analog and digital network 模拟数字混合网
- The asynchronous transfer mode (ATM) is the transfer mode recommended for the broad integrated service digital network (B-ISDN) by ITU-T. 异步传输模式ATM是国际电信联盟建议用于宽带综合业务数字网(B-ISDN)的传输模式。
- ATM is one of the key techniques for implementing Broadband Integrated Services Digital Network(B-ISDN). ATM是实现宽带综合业务数字网（B－ISDN）的关键技术之一。
- According to the trend of digital network,the "U" interface technology of ISDN and ADPCM technology is adopted. 配合数字化网络趋势 ,该系统采用了 ISDN的“U”接口传输技术和 ADPCM编译码技术。
- Which encapsulation methods are most commonly used with dialup integrated services Digital Network (ISDN)? 在一线通中一般使用哪两种数据封装方式?
- The signal processing system consists of a band pass filter(BPF) with center frequency of 2.856 GHz and bandwidth of 10 MHz,a logarithmic detector,a analog digital converting module,and a data acquisition program based on Labview. 带通滤波器选用中心频率为2.;856 GHz、带宽为10 MHz的腔体滤波器;对数检波模块采用对数放大器AD8313芯片;模数转换模块采用NI公司的PXI-5102;上位机的数据采集程序采用Labview编写。
- Digital network environment makes fair use of libraries confronting with difficulty. 摘要数字网络环境使图书馆合理使用面临困境。
- Stream media technology is used to transmit multi-media information on the digital network. 摘要流媒体技术是一种在数据网络上传递多媒体信息的技术。
- Also known as GSM1800 or PCN, this digital network operates in Europe and Asia Pacific. 也称作GSM 1800 或PCN，该数字网络在欧洲和亚太地区使用。
- According to the trend of digital network，the "U" interface technology of ISDN and ADPCM technology is adopted. 配合数字化网络趋势，该系统采用了ISDN的“U”接口传输技术和ADPCM编译码技术。
- AND Automatic Digital Network Dialing. A digital private line service that transmits voice, data, video and other digital signals. 自动数字网络拨号。一种数字私线服务,传输话音、数据、视频以及其他的数字信号。
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