• 1. digital up conversion: 数字上变频 | 频器
• 2. DUC Digital up conversion: 数字上变频

• 1.This Paper deals with the design and implementation of Digital Up Conversion (DUC) by field-programmable gate array (FPGA).
  研究了基于FPGA的数字上变频的设计和实现。
  dict.yoduao.com
• 2.This paper deals with the design and implementation of Digital Up Conversion and Digital Down Conversion based on the field-programmable gate array (FPGA).
  本文主要研究的是基于现场可编程逻辑阵列（FPGA）的数字上下变频技术的设计和实现。
  dict.yoduao.com
• 3.Modem enables the mutual conversion of analog signals and digital signals. Dial up connection is impossible without medom.
  调制解调器是实现模拟信号和数字信号互相转变的设备，通过它用户的电脑才可连接因特网。
  dict.yoduao.com

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