ddc

  • 网络直接数字控制器(Direct Digital Controller);直接数字控制(direct digital control);数字下变频(Digital Down Converter)

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ddc

直接数字控制器(Direct Digital Controller)

掌握直接数字控制器(DDC)的基本结构,常规下位机控制回路的基本组成;掌握楼宇空调的冷水机组系统,冷媒水系统和风侧系统之 …

直接数字控制(direct digital control)

采用直接数字控制(DDC)中的最小拍控制来控制一电加热炉,输入为加在电阻丝两端的电压,电加热炉的炉内温度作为...更多>>温 …

数字下变频(Digital Down Converter)

LOGO 数字下变频(DDC) 数字下变频(DDC) 汇报人:吴阳 学号:2011202120081 学号:2011202120081 数字下变频:在超外 …

杜威十进分类法(Dewey Decimal Classification)

杜威十进分类法(DDC),早在1873年时Melvil Dewey就有此分类构想,而于1876年正式出版,是目前全球各地图书馆广泛使用的分 …

数字下变频器

数字下变频器(DDC)内部NCO的工作频率为fL,考虑一般的情况,待发送的基带信号为复数形式,表示成:s(t)=I(t)+jQ(t) (1) …

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DDC method based on FPGA is put up in this paper, which is realized with a high speed and a high performance. 提出了一种数字下变频的FPGA实现方案,实现了高速、高性能的数字下变频。
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The Digital Downconverter is one of the key components in implementing software radio. 数字下变频器(DDC)是实现软件无线电的关键部件之一。
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Digital Down-Converter (DDC) is one of the key technologies in Software Defined Radio. 数字下变频是软件无线电的核心技术之一。
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Secondly, we propose theformal definition of a DDC-LCC and an Ontology-classification-scheme mapping. 其次,我们正式定义了DDC-LCC之间和本体-分类表之间的映射。
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from resource - usage point , this design is better than traditional ddc. 在资源消耗上本设计也远小于传统的数字下变频器。
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When we describers the classifier, firstly, we explain how these Ontologies can be built in a modular fashion, and mapped into DDC and LCC. 在介绍分类器的过程中,我们首先解释如何以模块化的方式构建本体,并把本体映射到DDC和LCC中。
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Verification and logic synthesis result show that the DDC chip can meet the requirement, also have stable performance. 验证和逻辑综合结果表明DDC芯片能满足设计要求,性能稳定。
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In 2004, we developed network monitoring system for air conditioners, freezers, and coolers as well as programmable DDC controllers. 2004年研发出空调、冷冻、冷藏网络监控系统及DDC可程式现场数位处理器。
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With respective control system of PLC and DDC, the related equipment can be controlled and monitored perfectly. 同时利用各自的中控计算机系统,对现场各设备起停、运行实施监控。
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A web site (Dewey. info) is under development that will, among other things, provide linked DDC summaries in nine languages. 现在杜威正在建设一个网站(Dewey.info),这个网站可以用九种语言提供DDC简表。
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An improved efficient implementation method of digital down converter(DDC) in radio monitoring receivers is presented. 提出了一种高效数字下变频器(DDC)实现方法。
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This paper analyzes the digital down conversion(DDC) of wideband reconnaissance receiver IF digital signal based on polyphase filtering. 分析了基于多相滤波结构的宽带侦察接收机中频数字信号下变频处理方法。
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This paper is mainly about the application of DDC(Direct Digital Control)process control in polymerizer forced condensation and the results. 本文主要论述了聚合釜冷凝强制投用的DDC过程控制应用。
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This arrangement of DDC is also widely used in US too. 这种DDC排列方式也广泛使用于美国。
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In addition, an improved DDC algorithm is presented to reduce the the computation of clustering algorithm. 3. 为提高算法的实时性,论文中还提出了改进的动态距离聚类算法。
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Futhermore, the typical design structure of the programmable DDC is described by giving the example HSP50214B. 最后通过例举HSP50214B进一步说明了通用可编程DDC的典型设计结构。
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One polyphase structure of FIR filter is used to improve the performance of DDC. 并采用FIR滤波器的多相结构改进下变频器的性能。
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Analysis on the DDC Method and Calculation of Subsidence at the Deep Thick and Wet Subgrade in Zhengzhou-Xi'an Passenger Dedicated Line 郑西客运专线深厚湿陷黄土地基DDC桩法分析及沉降计算研究
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Design of temperature control model used in general minitype DDC for HVAC control systems 暖通空调系统通用小型DDC温度控制模型设计
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First described in the user requirements determined on the basis of three central air-conditioning based DDC system monitoring mode; 首先在用户需求描述的基础上,确定基于DDC的三层中央空调系统监控模式;
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DDC CUSTOM furniture build pa dutch quality hand crafted custom furniture and fireplace surrounds 定制手工雕刻家具及火炉旁用品
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Modular Configuration Design of DDC Controller in Building Automation System 楼宇自动化系统中DDC控制器模块化组态设计
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Progressively increasing dosage of DDC induced pancreatic fibrosis in rats DDC递增法诱导大鼠胰腺纤维化动物模型的研究
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Installation und Programmoptimierung des Johnson DDC Controllers 控制器的安装与调试
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Application of DDC lime-soil pile in the foundation management of collapsibility loess DDC灰土桩在湿陷性黄土地基处理中的应用
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The Design and Realization of DDC Control System in the Intelligent Net-Welding Machine 智能焊网设备DDC控制系统的设计与实现
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Violent gas repair technology of groundwater-evaluation of DDC well 地下水曝气修复技术DDC井的评估
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Application of Polyphase Filtering in Wideband DDC 多相滤波在宽带数字下变频中的应用
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The DDC technology and illustration of air conditioning in hotel 饭店空调系统的直接数字控制技术与实例
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Application of DDC System to Air Conditioning Projects DDC系统在空调工程中的应用