数字下变频的英文

• digital down convert

• "数字"英文翻译    figure; digit; numeral; char ...
• "下"英文翻译    below; down; under; undernea ...
• "变频"英文翻译    frequency conversion
• "下变频" 英文翻译 :    down-conversion
• "下变频器" 英文翻译 :    bdc (block down converter); low-converter
• "下变频器25" 英文翻译 :    block down-converter
• "下变频信号" 英文翻译 :    downconverted signall
• "参量下变频器" 英文翻译 :    parametric downconverter
• "低杂讯块下变频器" 英文翻译 :    low noise block down converter (ln
• "低噪声块下变频器" 英文翻译 :    low noise block down-converter (lnb)
• "准同步数字下列" 英文翻译 :    pdh pseudo synchronous digital hierarchy
• "数字上变频" 英文翻译 :    digital uconvert
• "数字上变频器" 英文翻译 :    duc: digital uconverter
• "隐藏在数字下的规则" 英文翻译 :    the hidden law of a probable outcome
• "变频" 英文翻译 :    [电子学] frequency conversion◇变频电路 frequency changer circuit
• "字下线" 英文翻译 :    underline
• "下变差" 英文翻译 :    lower variation; lowervariation
• "下变的" 英文翻译 :    steady
• "下变换" 英文翻译 :    down conversion
• "下变性" 英文翻译 :    fixity
• "首字下沉" 英文翻译 :    drogap
• "字下划线" 英文翻译 :    underline
• "字下划线符" 英文翻译 :    word underscore character; wuc
• "地下变电所" 英文翻译 :    underground substation
• "地下变电站" 英文翻译 :    subway substation; underground substation

• Ddc technology based on band - pass sampling
  基于带通采样的数字下变频技术
• Digital down converter is one of the key technology of the sdr
  数字下变频是软件无线电中的关键技术之一。
• One is the digital down conversion . the method of look - table is described in detail
  其一是数字下变频算法，重点说明了其中的查表法及其推广。
• Being based on the theory of the sdr , the topic researched the actual model of ddc
  本课题以软件无线电的理论为基础，研究了数字下变频的实际处理模型。
• Digital down converter ( ddc ) is one of the core technologies in the software defined radio ( sdr ) receiver
  数字下变频( ddc : digitaldownconvert )技术是软件无线电接收机的核心技术。
• Therefore , a method in design and fpga implementation of wideband digital if receivers based on polyphase filters to fulfill decimation and filtering is proposed
  本文正是基于这种目的，研究并设计了基于软件无线电技术的中频数字接收机的数字下变频。
• Frequency estimation technology and bandpass filtering , which are named as wideband digital downconversion technology , are the key technologies to realize data rate conversion system
  测频技术以及带通滤波,即宽带数字下变频技术,是实现数据率转换系统的关键技术。
• This paper presents a method of realization of numeric transducer using tms320c542 dsp . the program of numeric down - transducer and multi - rate sampling is given
  摘要在tms320c542数字信号处理器上，用查表方法实现了dsp数字变频器，并给出相关的数字下变频和多抽样率信号处理程序。
• Conventional ddc down - converts digitally by digital mixing , filtering , and decimating ; on condition of high - speed a / d converters , the commercial ddc is no longer applicable
  传统的ddc通过数字混频、滤波、抽取实现数字下变频，在高速a d和电子侦察环境条件下商用ddc不能使用。
• As a result , some key technologies of sdr such as modulation , demodulation , ddc and dug have been hot topics . in this paper , some key technologies of sdr are researched deeply
  于是，软件无线电中的一些关键技术，例如：调制解调技术，数字上变频，数字下变频等成为该领域的研究热点。