数字上变频 meaning in English
digital uconvert
Examples
- 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。 - It is very difficult to realize digital rf , but we can realize digital if . digital if mainly include : digital up convert ( duc ^ digital down convert ( ddc ) , a / tk d / a and number control oscillator ( nco )
目前实现射频数字化还有一定的困难,但可以实现中频部分数字化。数字中频处理主要包括数字上变频、数字下变频、 a d与d a的处理以及数控振荡器等。 - Here we try out a hard way with video card to realize it . in the second place , we discuss some ways of digital modulation in transmission of image data , for example bpsk , qpsk , qam , and so on
随后,针对qpsk ,详细讨论了其基本原理和具体的实现算法,并进行了仿真验证,然后选用hsp50215数字上变频芯片和hsp50214b数字下变频芯片,设计了数字调制、解调器的实现方案。 - The digital upward frequency conversion is the key element of the waveform synthesis . at the same time , basic theoretical analysis and optimum design are done for pci bus slave interface , fifo , transmit signal processor , digital - to - analog converter and logic control
本文对波形合成技术的核心? ?数字上变频进行了深入细致的研究和介绍,同时对波形合成器中的pci总线接口、先进先出缓冲器、发射信号处理、数模转换及逻辑控制等部分进行了分析和优化设计,给出了最佳设计方案。