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digital     
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  数字
    A Study on Digital Real-time Dynamic Simulation and Testing System for the Excitation Regulator of Synchronous Generator
    同步发电机励磁数字动态仿真测试系统的研究
短句来源
    A Study on Design and Realizations of Finite Word Length Digital Controllers
    有限字长数字控制器设计与实现若干问题的研究
短句来源
    Research on Theory and Error of Analog Digital and Mixed Sampling Power Measurement
    模拟、数字及混合采样功率测量的理论与误差研究
短句来源
    Studies of Key Technologies for Digital Power Transmission Network
    数字输电网络的关键技术研究
短句来源
    Research on Digital Simulation and Novel Digital Main Protective Principles of Transformer
    变压器数字仿真和数字式主保护新原理的研究
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  数字化
    Study on Electric Signal Digital Measuring Technology and Its Application
    电气信号数字化检测技术及应用研究
短句来源
    Research and Practice of Communication Networks in Digital Substations Based on IEC 61850
    基于IEC 61850的新型数字化变电站通信网络的研究与实践
短句来源
    A100-MHz Analog Oscilloscope for Digital Measurements
    数字化测量用100MHz模拟示波器
短句来源
    A Design of Digital Phase--locked Frequency Multiplier
    全数字化锁相倍频器的设计
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    The Pricision Digital Measurment of Impulse Voltage
    高精度数字化冲击电压测量
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  数字式
    Research on Digital Simulation and Novel Digital Main Protective Principles of Transformer
    变压器数字仿真和数字式主保护新原理的研究
短句来源
    Key Problems in Developing Type WYZ and SZY Digital Telequipments
    WYZ及SZY型数字式综合远动装置研制中的几个关键问题
短句来源
    CIRCUIT DESIGN OF SZ DIGITAL POWER FREQUENCY RELAY
    SZ型数字式周波继电器电路设计
短句来源
    Analysis of Noise in Direct Digital Frequency Synthesis
    直接数字式频率合成的噪声分析
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    SZH-IE TYPE DIGITAL FREQUENCY RELAY
    SZH-1E型数字式周波继电器
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  全数字
    A Fully Digital and High Performance Model Reference Adaptive Control DC Speed Adjusting System
    全数字高性能模型参考自适应控制直流调速系统
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    A Total Digital Measurement Apparatus of Impedances Based on DFT
    采用DFT的全数字比率阻抗测量仪
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    The digital controller implementation is proposed and the experiment verified on the prototype Sync-Buck 12V input 1V output VR.
    以12V输入、1V输出Sync-Buck为主电路,实现了全数字、高精度、高开关频率的DC/DC开关电源。
短句来源
    This paper proposes a servo system design of a new missle system based on digital brushless DC motor using TMS320LF2407A Digital Signal Processor(DSP). Through analysis of the principle of operation,the system is designed with a three-closed loop control,namely the current,speed and position loop control,the algorithms and supporting software program are presented,which improves system′s reliability.
    介绍应用DSP芯片TMS320LF2407A设计了全数字无刷直流电机的导弹舵机伺服系统,分析了系统的组成,充分利用了DSP芯片适合于电机运动控制系统的特点,设计了电流、速度和位置三闭环控制的无刷直流电动机系统,提出硬件设计和软件实现方法及DSP控制算法,使得整个系统具有更高的可靠性。
短句来源
    A full digital control system for SVC(Static Var Compensator)based on Simadyn-D controller is proposed.
    提出一种基于Simadyn-D控制器的全数字静止无功补偿装置(SVC)控制系统。
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      digital
    Such systems play an important role in time-frequency analysis and digital signal processing.
          
    There are many advantages in the use of Hadamard matrices in digital signal
          
    An Inhomogeneous Uncertainty Principle for Digital Low-Pass Filters
          
    This article introduces an inhomogeneous uncertainty principle for digital lowpass filters.
          
    The measure for uncertainty is a product of two factors evaluating the frequency selectivity in comparison with the ideal filter and the effective length of the filter in the digital domain, respectively.
          
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    In this paper an analog-digital converter using comparison method is recommended. This converter is especially suitable for low level input signals and is all transistorized. Construction and characteristics of its main functional devices are briefly discussed. Technical specifications are given.

    本文介绍了一种逐位权衡编码法的模拟-数字转换器,它适用于低电平输入的情况.装置为晶体管化.文中扼要地叙述了这种转换器和其几个主要环节的实现方法及特性,给出了转换器的技术指标及所存在的问题.

    ID recent years the wide application of node impedance matrix method has proved itself as an effective tool in solving power system short circuit calculation problems (including zero sequence mutual induction effect) by electronic digital computers. This paper describes the fundamental concept of node impedance matrix and different methods to formate them.Special attention being paid to the topological method of matrix transformation. It further extends the application of node impedance method to solve...

    ID recent years the wide application of node impedance matrix method has proved itself as an effective tool in solving power system short circuit calculation problems (including zero sequence mutual induction effect) by electronic digital computers. This paper describes the fundamental concept of node impedance matrix and different methods to formate them.Special attention being paid to the topological method of matrix transformation. It further extends the application of node impedance method to solve simultaneous ground fault problems, single phase reclosing problems, transient stability calculations and loss coefficient calculations. All programs hare been verified on electronic digital computers.

    近年来,在数字计算机上应用结点阻抗矩阵法计算电力系统短路电流(包括零序互感)显示出快速精确的效果。本文就结点阻抗矩阵的概念以及形成方法进行一次探讨。文中着重分析了一种利用网络几何原理进行的矩阵变换法。此外,还介绍了将结点阻抗矩阵推广应用于电力系统其他计算问题(异相两点接地、动态稳定、单相重合阐以及线损系数等)中的一些经验。文中所介绍的方法均在数字机上经过了检验。

    The determination of the optimum structural design of steel towers of high-voltage transmission lines involves numerous calculations to be performed, which is beyond the possiblies of ordinary band methods. Automatic electronic digital computers furnish the most valuable tool to solve such engineering problems.This paper introduces the basic method to program the design of a corset type tangent suspension steel tower on electronic digital computers, and the experience of actual application of the...

    The determination of the optimum structural design of steel towers of high-voltage transmission lines involves numerous calculations to be performed, which is beyond the possiblies of ordinary band methods. Automatic electronic digital computers furnish the most valuable tool to solve such engineering problems.This paper introduces the basic method to program the design of a corset type tangent suspension steel tower on electronic digital computers, and the experience of actual application of the method in some engineering work. Some suggestions have been made for future development.

    本文介绍了利用电子数字计算机自动选择输电线路酒杯型铁塔最佳设计方案所采用的基本计算方法,给出了程序设计框图。 当计算时给定了负荷、轮廓尺寸和各种尺寸的变化范围后,机器可以自动选择斜材形式与尺寸,组合成千百种方案进行比较,选出最佳设计方案。输出数据可以直接用来绘制施工图。 文中介绍了在某些工程中实际应用的效果,提出了今后进一步改进的问题。

     
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