查询词典 analog to digital

The inventer controller composed by separated analog devices before has developed into analog-digital or full digital controller based on microprocessor.

逆变控制器的发展经历从分立元件的模拟电路到以专用微处理芯片为核心的电路系统，并从数模混合电路过渡到纯数字控制的历程。

, [Chapter 5 of analog-digital conversion and digital-analog conversion], Chapt...

[第4章单片机功能应用]，[第5章模数转换与数模转换]，[第7章人机接口技术]，[第8章通信接口技术]。

The working principle of a novel short st roke linear DC motor wit h permanent magnet s is presented. Mixed digital - analog cont rol approach based on DSP ( TMS320L F2407A) is proposed. Displacement detecting and cont rol technique are discussed. Displacement detecting circuit s , digital - to - analog converter (DAC7641) expanded circuit s and cont rol software are given.

阐述了一种新研制的短行程永磁直流直线电机的工作原理，提出了基于DSP ( TMS320L F2407A)的短行程直流直线电机数、模混合伺服控制系统方案，重点对直线电机的位置检测及控制技术进行了研究，给出了DSP 控制器的位置检测接口电路、16 位双极性数模转换器(DAC7641)的扩展电路和控制软件的实现方法。

A high-speed digital-to-analog converter measurement method acquires and quantizes an analog ramp output by the DAC corresponding to a digital ramp input to produce a quantized ramp, determines a start and end of the quantized ramp, obtains a difference between the quantized ramp and an ideal ramp to produce a quantized periodic signal, determines a frequency for a qualified peak from an FFT of the quantized periodic signal, produces a mask filtered periodic signal from an iFFT around the qualified peak, and determines a sample window spanning a local maximum and minimum for each period of the quantized periodic signal.

一种高速模拟数字转换器测量方法，采集和量化由DAC输出的相应于数字斜坡输入的模拟斜坡以产生量化的斜坡，确定量化的斜坡的开始和结束，获得量化的斜坡和理想的斜坡之间的差值以产生量化的周期信号，从量化的周期信号的FFT中确定合格峰值的频率，从合格峰值周围的iFFT中产生屏蔽过滤的周期信号，并且在量化的周期信号的每一周期内确定跨越局部最大值和最小值的采样窗口。

Analog and digital grounds should be tied at one common ground point to minimize circulating digital and analog ground currents and noise.

模拟和数字地应该连接到公共的地上的一点，以使流过的数字地和模拟地电流和噪声尽可能的小。

The digital users signals comprising in-phase component and quadrature component are converted to analog baseband signals by digital-to-analog converters 104 and 114, which are followed by lowpass filters 106 and 116 for removing harmonics at unwanted frequencies.

包括同相分量和正交分量的数字用户信号通过数模转换器104和114转换成模拟基带信号，在数模转换器104和114的后面具有低通滤波器106和116，低通滤波器106和116用于去除在不期望频率处的谐波。

A three dimensional stereo sound reproducing apparatus for a mobile communication terminal comprises: a memory for storing sound data having a three dimensional stereo sound effect; a sound processing unit for reading the sound data from the memory when an incoming call is generated or when a user requests reproduction of the sound data and for decoding the sound data without distortion of the three dimensional stereo sound effect, thereby outputting the sound data as a type of an analog signal; and a speaker for amplifying the analog signal and outputting the amplified analog signal as a type of an audible sound.

该移动通信终端的三维立体声再现设备包括：用于存储具有三维立体声效果的声音数据的存储器；当生成呼入呼叫时或当用户请求再现声音数据时，用于从存储器中读出该声音数据并解码该声音数据而不会使三维立体声效果失真，由此以模拟信号的形式输出该声音数据的声音处理单元；和用于放大该模拟信号并输出该放大的模拟信号的扬声器。

In this thesis, a field programmable analog array appliable for industrial control is presented and analyzed. The whole system is composed of configurable analog blocks and interconnection network. Through programming the two circuit groups above, FPAA can be reconfigured to implement many desired analog functions along system level.

本论文旨在提出并分析了一种适用於工业控制用途的可程式类比阵列设计概念，大致上整体电路乃是经由可配置类比方块与连线网路两要素所构成，所以FPAA能够透过规划以上两项基本单元来建构出所需的类比函数，使得本系统的最大优点即在於可将类比电路设计提升至系统层次。

Aim at the question of measurement inaccurateness for the causes of disturbances and temperature excursion in the PLC multi-analog signals measure system,a kind of analog calibration method least square algorithm based is put forward.And then the detailed computation process of PLC analog signal's measure calibration is provided.

在由传感器、隔离器和PLC模拟量测量模块以及后端显示计算机组成的多路测量系统中，如果对测量参数不进行标定，则由于仪器本身的测量误差、多路测量通路之间的干扰等因素，后端测量计算机显示的测试数据往往是不准确的。

As a nucleotide analog, synthesization of entecavir not only guides synthesizing other analog, but also is propitious to impolder new nucleotide analog.

做为核苷类似物，恩替卡韦的合成不但可以指导其它该类药物的合成工艺，还有利于开发核苷类似物的新型药物。

Putt your way through 36 fun-filled holes of minigolf on 3D designed courses with elevated greens, bunkers, bridges and water hazards, among other crazy obstacles.

您的推杆方式，通过36个有趣的填孔迷你的三维设计的课程，以提升绿党，掩体，桥梁和水的危害，除其他疯狂的障碍。

Some participles can be used either as attributes or as predicatives.

有些分词既可当定语用，也可当表语用。