查询词典 analog to digital

In the analog domain, the basis for the basic implementation of a two-position controller is an analog comparator or an open-loop operational amplifier.

在模拟域，双位置控制器的主要部分是模拟比较器或开环运算放大器。

The telephone contains a transmitter and receive for converting back and forth between analog voice and analog electrical signals.

电话机包括一个送话器和一个受话器，用来在模拟话音和模拟电信号之间进行变换。

The telephone contains a transmitter and receiver for converting back and forth between analog voice and analog (voice-frequency) electrical signals.

电话机包括一个送话器和一个受话器，用来在模拟语音和模拟电信号之间进行变换。

These modular units include analog input multiplexers, analog output devices,"blank" breadboards, signal conditioning modules for thermocouples, and so on.

这些模块化的单位包括模拟输入多路复用器，模拟输出设备，&空白&面包板，热电偶信号调节模块等等。

Digital signal processor with high speed arithmetic and logic operation is the base for its digital realization. In this paper, it introduces the principle of direct torque control and the character of TMS320LF2407 digital signal processor. At the same time, it gives the software and hardware design of direct torque control system for asynchronous-motor based on the TMS320LF2407 DSP.

本文介绍了直接转矩控制的基本原理及TMS320LF2407 DSP的特点，给出了以TMS320LF2407 DSP为核心的异步电动机直接转矩控制系统的设计方案及软硬件的实现，同时对直接转矩控制系统进行了实验和仿真，验证了直接转矩控制技术的优良性能。

The method includes steps: digital watermark technique is adopted to hide information of key data in not key data codes of compressed image; under protection of digital watermark, using protective backup for key data detects whether normal transmitted key data is correct or not so as to detect error code; carrying out cyclic mutual backup by using macro blocks in same positions in front and back macro block set; embedding coded motion vector in form of digital watermark to DCT transformation coefficient, and ensuring that video data are not influenced as best as one can; when error code occurs, if key data backup is correct, then the backup replaces former key data; otherwise, using mean value of key data in adjacent macro blocks within same frame to replace former key data approximately.

本发明中，采用数字水印技术在压缩图像的非关键数据编码中隐藏关键数据信息；通过数字水印保护下的关键数据保护备份来检测正常传输的关键数据是否正确，由此来检测传输误码；用前后宏块组中相同位置的宏块进行循环相互备份；对运动向量进行编码，然后以数字水印的形式嵌入到相对不重要的DCT变换系数中，同时保证视频数据尽量不受影响；在误码发生时，如果关键数据备份正确，则直接替代原关键数据，否则用同一帧内相邻宏块的关键数据的平均值近似替代原关键数据。

Digital audio - Digital input-output interfacing - Transmission of digital audio over asynchronous transfer mode networks

数字音频。数字输入输出接口。异步传输模式网络上的数字音频传输

Digital Terrain Model is digital expression of geologic surface attributively information, it is also digital description with spatial location and terrain properties features.

数字地形模型是地形表面形态属性信息的数字表达，是带有空间位置特征和地形属性特征的数字描述。

We proposed the simplest structure of 2-D bilinear transformation digital circuit, we proposed four approaches of the realizations:(1) Realization of 2-D discrete domain difference equations;(2) 2-D FFT realization;(3) Digital hardware implementation;(4) by 2-D recursive digital structure to realize them.

在第七章，我们则重点研究了二维数字滤波器的实现问题。我们对第六章提出的2-D双线性变换电路又作了进一步的简化，获得了一种最简结构的二维双线性变换数字电路，该电路仅有二个延时器和一个乘法器。在第七章里，我们提出了二维跳耦型数字滤波器的四种实现方法：(1)二维时域差分方程实现；(2)二维FFT实现；(3)数字硬件实现，(4)用2-D递归数字结构实现。

ARM embedded system and DSP are widely used in everywhere nowadays, for example: PDA, digital top box, digital camera, and digital TV.

ARM嵌入式系统和数字信号处理器已无处不在，手机、掌上电脑、数字机顶盒、数码相机、数字电视等产品应用前景越来越广泛。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。