数字上变频器 meaning in English
duc: digital uconverter
Examples
- The transmitter is capable , when coupled with appropriate software , of digital modulation schemes such as pi - qpsk , gmsk and so forth , and supervised by a personal computer
它主要由一片dsp与可编程数字上变频器构成，可以通过pc机进行监控，通过加载合适的软件实现各种调制方式如pi 4 - qpsk ， gmsk等。 - 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。 - 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。