查询词典 digital coding

With the development of the digital technology,digital modulation and demodulation technology is being used widely.

0引言在直接序列扩频通信系统中，通常采用BPSK的载波调制方式。

Based on the study of digital synchronization techniques, this paper proposes a new all-digital demodulator for OQPSK.

本文通过对数字同步技术的研究，提出了一种新的OQPSK全数字解调器。

Digital phase lock loop is a key part of the digital demodulator.

数字锁相环是数字解调器的关键部件。

This paper introduces the determination of brine composition by digital densimeter,also called reverse check of brine composition by digital densimeter,which is a visible measure for brine density.

本文介绍了卤水组分数字密度计测量法也称数字密度计反校卤水组分即卤水浓度的实现方法。

In order to change the electric signal to optical signal and recover to electric signal, the system circuit includes analog-to-digital converter, serializer/deserializer, and digital-to-analog converter and level translators.

在保证稳定传输一路视频信号、一路串口信号和四路正反向控制数据信号的基础上，组建了主站和单站间局域网，实现了单站和主站间的数据高速共享与转储。

FPGA ; digital control ; digital differential analyzer ; arc interpolation

FPGA ；数控；数字积分法；圆弧插补

Digital digest; digital signature; electronic payment; payment gateway

数字摘要；数字签名；电子支付；支付网关

Electronic authentication means a service that is based on encryption technology, electronic signature, digital certificate, digital digest and so on, which are to be used to identify the signatory and the credibility and integrity of the document.

从字面上理解，凡是能颁发认证证书的机构都可以称之为认证机构。但本文的认证机构具有特定的含义，它专指电子商务中对用户的电子签名颁发数字证书的机构，它已经成为开放性电子商务活动中不可缺少的信用服务机构。

Second, we design and implementation the tax-controlled system and whole security of data of the system. We integrate application the encrypted algorithms technology, digital signature, key managing and digital digest, etc. And combine such hardware equipment as CPU card and POS machine, has solved the systematic security wholly.

然后对税控系统的整体系统及整体安全性进行设计与实现，综合应用密码技术、数字签名、密钥管理和数字文摘等，结合CPU 卡和税控器等硬件设备，整体解决了税控系统的安全性。

These home-area networks connect a variety of appliances, such as digital TVs, video cassette recorders, set -top-boxes and robot, personal computers and mobile devices, such as personal digital assistants and cellular phones.

这些家庭网络连接的各种设备，如数字电视，录像机，机顶盒和机器人，个人电脑和移动设备，如个人数字助理和移动电话。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。