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- digital data modulation system 数字信息调制系统
- adaptive data modulation system 自适应数据调制系统
- Data bits are allocated to the channels through a highly efficient modulation technique that converts digital data to electrical signal pulses. 数据通过一种高效的调制技术（即把数字数据变成电信号脉冲）分配给各个信道。
- The work uses Adaptive Delta Modulation (ADM) to realize speech waveform coding and digital data compression. 采用波形自适应增量调制编码方法;研究并解决了语音信号的压缩与加密.
- The research is based on the structure and principle analysis of digital direct current velocity modulation system of the mine hoister. 本课题通过对矿井提升机全数字直流调速系统的结构和原理分析，结合模糊控制理论的基础上。
- Object repository support for creating shared, reusable form and data module. 用于创建共享、可重用窗体和数据模块的对象储存库支持。
- Although they can use the same modulation techniques as radio or television stations, most modems use thchniques such as phase shift modulation, whch work well for digital data. 虽然可以采用与无线电和电视相同的调制技术，但大多数Modem采用适合数字数据的相移调制技术。
- No conversion from analogue to digital data is needed. 没有必要把模拟转换为数字数据。
- This paper discusses the principles and methods of digital data transmission. and gives a brief introduction of the digital data transmission system , DDN AND CHINADDN. 本文在简要地讨论了数字数据传输原理和方法之后，对数字数据传输系统、DDN网和CHINADDN作了概要的介绍。
- OK to produce a new WebSnap data module. 就可以产生一个新的WebSnap数据模块。
- An addressable digital data link system which permits the exchange of data and messages between an aircraft and a ground-based operations center over a radio network. 一种可寻址的数据通讯系统。利用该系统可使飞机与地面操作中心通过无线电网络进行数据和信息的交换。
- A Dual-loop adaptive delta modulation system (DLADM) consisting of an inner loop and outer loop isdescribed. 本文叙述一种双环自适应增量调制(DLADM)系统。
- CK Composite with Check Digits data type. 具检核值的合成资料型态。
- The laser pulse modulation system consists of cavity dumper driver,matching net and acousto-optic energy convertor. 超短脉冲激光调制系统包括腔倒空驱动器、匹配网络和声光换能器。
- This scheme makes use of DS/TH for multiple access and BPSK for data modulation. 这种方案采用DS/TH作为多址接入,以BPSK作为数据调制方式。
- Digital data are encoded by means of pits on the recording layer of the disc. 对数字化资料进行编码，是通过光盘记录层面上的凹坑来实现的。
- An optimal design method for the prototype filter design of the filtered multitone modulation system is proposed. 摘要给出了滤波多音调制系统的原型滤波器优化设计方法。
- Lastly, the capability of adaptive modulation system in the Raleign channel is analyzed and the system also simulated. 分析了自适应调制系统在瑞利衰落信道下的性能，并对系统进行了仿真。
- It devises the methods using GPRS data module and AT command. 重点介绍了系统组成中所使用的GPRS数据传输模块以及所使用的AT指令使用方法。
- In its various configurations, the signal generator can provide stimulus signals in the form of analog waveforms, digital data patterns, modulation, intentional distortion, noise, and more. 在各种配置中,信号发生器可以以模拟波形、数字数据码型、调制、故意失真、噪声等形式提供激励信号。
