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。
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。
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。
Then, a solution based on Digital Up Converter(DUC) was proposed, which implemented the conversion of a complex digital baseband signal to a real passband signal.
然后采用正交数字上变频（DUC）技术进行基带信号数字域调制和频率变换。
We switched to a CMOS 8051, put the digital side to sleep, and let the "end-of-conversion" flag wake up the microprocessor.
我们换了CMOS 8051，不使用数字部分，让“转换结束”标志唤醒微处理器。
We switched to a CMOS 8051, put the digital side to sleep, and let the "end-of-conversion" flag wake up the microprocessor.
我们换了CMOS 8051，不使用数字部分，让“转换结束”标志唤醒微处理器。
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