digital down eonverter

• 数字下变频

digital down eonverter的用法和样例：

例句

1. It is proposed that the efficient polyphase structure of bandwidth-matched digital downconversion and a significant improvement in efficiency and realizability can be achieved.
   文中还进一步给出带宽匹配接收数字下变频的多相高效结构，运算效率和工程可实现性大大提高。