up converter造句

• Multi - up converter
  多用途上变频器
• The up converter receives at its input the if signal coming from the modulator and converts it on the rf transmission channel
  上转换器在它的来自调节器的输入if信号上接收和在射频传输频道上转换。
• Digital down / up converter ( ddc / duc ) , modulation and demodulation are discussed in the dissertation as some essencial parts of sdr platform
  本文以软件无线电的理论为基础，研究了软件无线电中的部分关键技术：包括数字上下变频的实际处理模型以及调制解调部分的实现。
• The single dsp can transmit baseband signal to digital up converter and receive baseband sample signal from digital down converter through the control of interrupt signal at the same time . the stability and reliability of complete digital transmission system can be realized by this way
  本文利用dsp的中断控制,在单片dsp内发送基带数字信号同时处理来自数字下变频器的基带数字信号,实现了稳定、可靠的全数字中频与基带传输系统。
• Abstract ： to obtain the high frequency ( hf ) array signals , an applied circuit called hf array signals generator is designed using dsp and duc ( digital up converter ) . the generator simulates the generation of output signals of 9 - element arrays with different array format , different direction of arrival ( doa ) and existing cochannel signals respectively
  为了在实验室中获得短波天线阵列信号，应用dsp芯片和duc芯片(数字上变频器)设计了一个实用电路短波阵列信号发生器，模拟实现了短波九元天线阵的多种阵型、不同来波方向及存在同频多信号时的阵列输出信号。
• Chapter 3 discusses the modules used in the fh - mpsk and fh - / 4dqpsk systems . these modules include : duc / ddc ( digital up converter / digital down converter ) , nyquist flitter , burst start detection , interpolation module , pll ( phase locked loop ) , pll error extraction , initial phase correction and the coding and decoding for tcm
  第三章主要讨论了跳频模式下fh - mpsk和fh - 4dqpsk系统中各个模块的设计，这些模块包括：上下变频器、奈奎斯特滤波器、信号到达检测、插值模块、通用环路、各环路误差提取方法、初始相位校正和tcm编译码。
• The design of hardware module includes a / d converter , ddc ( digital down converter ) , duc ( digital up converter ) and dsp . the design and application of ad6640 and ad6624 are fully discussed in this part . the design of software module includes the parameter design for ddc filter and the base - band signal processing of dsp
  收发信机硬件设计主要包括： a d 、 d a转换器、数字下变频器( ddc ) 、数字上变频器( duc )以及dsp ，论文详尽介绍了a d器件ad6640 、 ddc器件ad6624和dsp器件tms320c5410的设计和应用；收信机软件设计主要包括： ddc滤波器参数设计和dsp的基带信号处理，给出了dqpsk调制、解调算法的dsp实现。
• A / d samples the intermediate frequency signal . the digital signal proceeding part based on tigersharc dsp can process the baseband digital signal including the algorithm of baseband modulation , baseband differential detection and symbol synchronization , etc . digital up converter supports interpolation filter and complex mixer
  A / d对中频信号进行采样,数字信号处理部分以tigersharcdsp为核心,负责基带采样数字信号的处理,实现基带信号调制,基带差分解调,符号同步的捕获和跟踪等算法。