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and system design
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  及其系统设计
     The Research of Multimedia Information Encryption Algorithm and System Design
     多媒体信息加密算法研究及其系统设计
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     The Research on the Method of Airspace Evaluation and System Design
     空域评估方法研究及其系统设计
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     Data Model Study and System Design of Digital Asset Management in Printing Corporation
     印刷企业数字资产管理数据模型研究及其系统设计
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     Fiber distributed Raman amplifier techniques and system design
     光纤分布式拉曼放大技术及其系统设计
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     Ocean color metadata and system design
     海洋水色遥感元数据及其系统设计
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  系统设计
     Design-For-Testability,DFT has become a very important part of the CMOS chip and system design.
     可测试性设计(Design-For-Testability,DFT)已经成为芯片或系统设计中不可或缺的重要组成部分.
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     CompactPCI Bus Technology and System Design
     CompactPCI总线技术及系统设计
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     Signal Propagation and System Design on MMDS
     MMDS的信号传播及系统设计
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     Protocol analysis of USB communication and system design
     USB通信协议分析和系统设计
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     Research on Application and System Design of Mobile Phone in Mobile E-Commerce Based on J2ME
     基于J2ME的手机移动电子商务应用研究与系统设计
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  及其系统
     The Research of Multimedia Information Encryption Algorithm and System Design
     多媒体信息加密算法研究及其系统设计
短句来源
     The Research on the Method of Airspace Evaluation and System Design
     空域评估方法研究及其系统设计
短句来源
     Data Model Study and System Design of Digital Asset Management in Printing Corporation
     印刷企业数字资产管理数据模型研究及其系统设计
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     Research on Key Technology、Apparatus and System Design in Eco-Cement Manufacture
     生态水泥生产的关键技术、设备及其系统研究
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     Fiber distributed Raman amplifier techniques and system design
     光纤分布式拉曼放大技术及其系统设计
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  “and system design”译为未确定词的双语例句
     Characteristics Analysis and System Design for MTJ MRAM
     MTJ MRAM的特性分析与设计
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     Through systems analysis and system design,WSPIS was implemented.
     根据卫星工程项目管理过程 ,提出了WSPIS系统的体系结构 ,经过系统分析 ,设计并实现了WSPIS系统
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     His paper introduces the main advantage, technical characteristic, applicative rang and system design of the intelligent digital single bus temperature sensor(DS1820) which applied to automatic test system.
     介绍单总线数字式智能型温度传感器 ( D S1820) 应用于自动化测试系统的主要优点, 技术特性, 适用范围, 以及应用系统的设计
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     Study on Machining Process Simulation Method and System Design
     切削加工过程的仿真方法研究与实现
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     The experiment was carried out on the test loop HRTL-5,which simulates the geometry and system design of a 5 MW Nuclear heating reactor.
     实验研究在5MW核供热反应堆模拟热工水力学实验回路HRTL-5上进行。
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  and system design
This model is a generalization of previous multi-server vacation models and offers a useful performance evaluation and system design tool in multi-task server queueing systems.
      
This paper describes the design and implementation of the relevant abstractions and discusses the implications for programming-language and system design.
      
This paper focuses on this subject, by introducing an integral assembly model to improve the insight into the interaction between product, process and system design.
      
Insufficient coherence and synchronization between product, process and system design often lie at the basis of great design efforts and high design costs.
      
Business design and system design are done by customizing the standard specifications.
      
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This article reviews the commonly used methods for expression of radar's ECCM performance, points out their disadvantages and proposes that it is required to establish the formulae which consist only of the radar's technical parameters in order to measure the radar's ECCM capabilities.By means of logical argumentation and ambiguity function theory we can derive the followings: ( 1 ) The radar's 4-dimensional generalized resolution parameter can be used to express the radar's basis anti-clutter capability. The...

This article reviews the commonly used methods for expression of radar's ECCM performance, points out their disadvantages and proposes that it is required to establish the formulae which consist only of the radar's technical parameters in order to measure the radar's ECCM capabilities.By means of logical argumentation and ambiguity function theory we can derive the followings: ( 1 ) The radar's 4-dimensional generalized resolution parameter can be used to express the radar's basis anti-clutter capability. The simplified expression of this parameter is T0 (the dwelling time at a radar's target, or the integration time of a echo signal of the radar) × Bs (the radar signal bandwidth) X G (the radar antenna gain); ( 2 ) The product of an average radar's transmitting power and its generalized resolution parameter PT0×BsG can be used to express the radar's anti-jamming capability, and the same formula may also be used to express the total interference rejection capability in gross.By another approach, I. e. by calculation of the radar's output signal to interference power ratio under various interference conditions, the given formulae have further been proven. The given formulae consisting of the radar's fundamental parameters are the fundamental parts of the measuring formula of the radar's ECCM capabilities. They represent the radar basic or potential ECCM performance. The supplementary factors for the ECCM capability formulae are composed of the technical specifications of the radar's ECCM devices. The general rule of com-position is to take the typical quality level (or the middle level) specification (in db) as the base figure. If the quality level of some devices is higher,a positive factor will be got, and if lower-a negative. For example, theequation for MTI supplementary factor ρM isρM(db) = SCV-25(db) where 25 db is the middle level specification for SCV of modern MTI radar.As many radar systems consist of multiple channels, in this article we propose a set of equations for the multichannel radar system's ECCM capabilities in terms of the ECCM capabilities of the individual channel.In the last part of this article, 4 radar systems are taken as examples, their ECCM capabilities are calculated by means of the given formulae. Application of obtained results to radar's system analysis and system design are discussed.

本文论述了度量雷达抗干扰能力的方法,提出了一组通用的度量公式。这些公式的基本部分是由雷达的主要技术参数组成。代表雷达的潜在抗干扰能力。公式的补充部分是由雷达各种抗干扰技术措施的指标所组成,代表这些抗干扰措施的质量水平。用这组公式可以计算出雷达抗消极干扰能力、抗积极干扰能力与综合抗干扰能力的表征数值。本文给出了计算举例,讨论了计算结果在雷达系统分析与总体设计中的应用。

This paper discusses some problems on dynamics, system scheme and system design of the dumbbell-shaped gravity-gradient satellite. The system composition, function and the main parameter selection are also considered. Finally, the result of mathematical simulation is given.

本文讨论哑铃式重力梯度卫星的动力学,系统方案,系统设计中的若干问题。并且研究系统组成,功能和主要参数选择。最后,给出数学仿真结果。

In the optimal control theory,it has been shown that the time-optimal control of a linear normal system with constrained amplitude of control is certainly a switching function[1,4] .In theory,the optimal switching function for any high-order normal system always exists;in practice,however,swi-tching functions for more than fourth-order system are quite complicated,and thus they are unrealistic in engineering,while only the switching func-tions for a second or third-order system possess simple structure.The inve-tigation...

In the optimal control theory,it has been shown that the time-optimal control of a linear normal system with constrained amplitude of control is certainly a switching function[1,4] .In theory,the optimal switching function for any high-order normal system always exists;in practice,however,swi-tching functions for more than fourth-order system are quite complicated,and thus they are unrealistic in engineering,while only the switching func-tions for a second or third-order system possess simple structure.The inve-tigation in the model reduction theory for a large-scale system has shownthat a high-order system can be replaced by a simplified model which retains the main characteristic of the original system.Therefore,it is a very mean-ingful practical engineering problem to design a control system with good performance by the use of the main characteristic information of the origi-nal high-order system.In reference[3] ,Padéapproximation technique and system design are taken into account simultaneously by introducinga hypothe-tical damping coefficient-taken from the design of a second-order optimalcontrol system.Although better result is obtained in[3] ,the designed con-troller is too complicated.The purpose of the present paper is to find an opti-mizing design method of nonlinear feedback control for fast control of a high-order system,and to make the designed controller easily realizable in engine-ering practice.

本文运用模型降阶、最优控制和参数寻优相结合的方法探讨了高阶系统非线性反缋控制的优化设计问题。编制了 CAD 程序。实例表明,本方法物理概念明确,计算简单易行,所设计的系统以很高的精度逼近时间最优控制系统。适合于工程应用。

 
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