查询词典 digital signals

Chapter 3 dissertates the structure, trust model, security performance and development of PKI, then discusses the correlated technologies of PKI which includes message digest, digital signature, digital time stamp, digital certificate, SSL, SET and IPSec protocol.

首先分析了PKI的体系结构、信任模型、安全性能和发展方向，然后讨论了PKI的相关技术：包括消息摘要，数字签名，数字时间戳，数字证书，SSL协议，安全电子交易(Secure Electronic Transaction，SET)协议，和Internet安全协议(Internet Protocol Security，IPSec)。

Based on the experiments, we come up with two methods of digital imagingof gun camera: The first one is to change the gun camera and make it as aspecial digital imaging system. If so, the gun camera will not support thefilm cassette. The second method is to enable the digital imaging cassette tofit the gun camera.

在实验的基础上提出了感光式胶片照相枪数字化成像的两种方案：一是改造照相枪，使之成为专门的数字化成像系统，这是一个比较优化的数字化成像系统，但改造后照相枪将不兼容感光胶片式暗盒。

Digital filter is a digital channel processing, one of the most important component of almost appear in all of the digital signal processing systems.

数字滤波器是数字信处理中最重要的组成部分之一，几乎出现在所有的数字信号处理系统中。

Digital filter digital signal processing is the most important part of almost all in the digital signal processing systems.

数字滤波器是数字信号处理中最重要的组成部分之一，几乎出现在所有的数字信号处理系统中。

Digital video processing is a kind of digital signal processing technology faced to diversity of digital television formats.

数字视频处理是面向数字电视业务的多样性而产生的数字处理技术。

Since the signal equipments imported is unable to meet the development demand of urban rail transit, independent research of the domestic digital jointless track circuit is critical. Charateristic analysis for signal transmission of digital jointless track circuit was mainly studied in this thesis. Design digital jointless track circuit analysis software, which validated the transmission parameters could or not meet requirements of the normal, shunt and signaling states, was the key work of the research.

本文在我国引进的国外信号设备无法满足国内城市轨道交通发展的需求，并自主研发出国产化试验型数字轨道电路的背景下，对数字无绝缘轨道电路信号传输进行特性分析，并设计出数字无绝缘轨道电路分析软件，实现对特定的轨道电路传输参数验证其能否满足调整、分流和机车信号工作状态的要求。

The design , which is based on the realization of dot operation of Visual C# digital image processing, exterts the object-oriented design technology and the technology on digital image processing, taking visual c#.net as a tool of system utility program development, and microsoft visual studio.net as integrated development enviornment, to develop system software by utility programming and GDI+,and to supports eight functions of digital image processing: inversecolour processing,graylevel processing ,brightening processing,embossment processing,edge test ,image smoothing, darkening processing and transparent processing.

用Visual C#。net 进行数字图像处理是我的一个全新的尝试，它具有开发过程简明，开发方式灵活，扩展性强等特点，是一种被广泛运用的前端开发平台。Visual C#。net提供多种多样的编程技术，对于一个刚入门不久的新手来说无疑是个挑战，尤其是图像处理中的算法，是个大难题，该问题也是这次毕业设计所要解决的主要问题，不过我想能够有毕业设计这个难得的机会使我对VC#有了一个更深入的了解。态度决定一切，只要你认真对待了，就一定会有收获。注：此文版权归本站所有，需付费购买，本站保证购买者的省唯一性。

3609Today we have sale No.6\No.5 cameras in China, That's not high enough, we have to move farer, on the total global basis, we are No.4, and in the United States, we No.2, I believe with the right effort in China, we can move up to a much higher level, 2 or 3 for sure, and now it is the time because the digital camera market is just getting started in China, actually it is very small in terms of penetration, I am glad everybody here uses the digital camera, but if you don't afterwards I will sell you a digital camera

目前我们相机在中国市场的销售是占第六第五这个位置，这个份额不够高。所以我们必须向前发展。从全球范围来看，我们的销售占第四位，在美国占第二位，我相信，通过在中国的不懈努力，我们可以更上一层楼，争取到第二或第三的位置。我想现在正当好时机，因为数码相机在中国刚刚起步，无论从规模或是渗透力来讲都比较小，看到你们当中的每个人都在用数码相机，我感到很高兴，如果你没有的话，那么过一会我可以卖给你一个。

A digital AGC circuit using a digital potentiometer to rep lace the feedback resistance of the amp lifierwas designed. In order to get an app rop riate gain, MCU adjusted the resistance of the digital potentiometer automatically according to the voltage value of amp lifierps output.

为使输入信号不受这一限制，设计了一种数字式自动增益放大电路，该电路采用数字电位器取代放大器的反馈电阻，单片机根据放大器输出电压自动调整数字电位器的阻值来调节放大器增益，使输出电压始终维持在所设定的上下限电压之间。

Use several function design some universal digital filter, get the coefficient of digital filter, prepare the prophase task of design a digital filter base on DSP.

并采用了相关的函数设计了几款常用的FIR数字滤波器，并得到了滤波器的相关系数，为利用DSP实现数字滤波做好了一些前期的工作。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。