片语

down digital converter下变频器

wideband digital down-converter宽带数字下变频器

microwave frequency down-converter微波下变频器

Low Noise Block Down-converter低噪声块下变频器

programmable digital down-converter可编程数字下变频

sampling frequency down-converter取样下变频器

parametric down-converter参数向下转换器

ddc digital down frequency converter数字下变频器

英汉例句

• In this paper, the high decimation ratio of digital down converter is studied and the multi-stage decimation algorithm is especially analyzed based on CIC filter, CFIR filter and RRC filter.

  研究了高倍抽取的数字下变频设计，重点分析了基于级联积分梳状滤波器、级联补偿滤波器、级联根升余弦滤波器的多级抽样频率算法。

• The real time processing of high speed data flow makes strict demands on the performance of descendant digital down converter in the wideband digital receiver.

  在宽带数字接收机中，高速数据流的实时处理对后继数字下变频器性能提出了极为苛刻的要求。

• Based on these elements, the material design of if sample and digital down converter based on FPGA is specified.

  在此基础上，介绍了中频数字采样单元和基于FPGA的数字下变频单元的具体设计。

• A combination Low Noise Amplifier and down converter built into one device attached to the feed.

  低噪声放大器和下变换器内置于连接到馈电的一个设备。

• Digital down converter (DDC) is a vital device of digital receiver and numerically controlled oscillator (NCO) also is a key device that influences the DDC's function.

  数字下变频器(DDC)是数字接收机的重要部件，而数字振蕩器(NCO)又是影响数字下变频性能的关键器件。

• The basic concept and architecture of software radio is introduced in this paper. And a type of software radio receiver based on programmable digital down converter (DDC) -hsp50214b is presented.

  介绍了软件无线电的基本思想及结构，提出了一种基于可编程数字下变频器HSP50214B的中频软件无线电接收系统的设计方案。

• Combining to devise radio telemetry receiver, the application of digital down converter and frequency demodulation in software radio is discussed and analysed.

  结合无线电遥测接收机的设计，论述和分析了软件无线电技术中的数字下变频和调频数字解调技术在遥测接收机中的应用。

• At last, this thesis realizes digital down converter based on FPGA, and the whole designing process includes algorithm simulation, VHDL description, FPGA simulation and real system test.

  最后，基于FPGA对数字下变频进行了设计及实现，具体包括：算法仿真、VHDL描述、FPGA仿真和实际系统测试。