1) Low IF principle
低中频方案
2) low-frequency plan
低频化方案
1.
A low-frequency plan based on this result is presented.
据此提出了将信号插入低频段后进行自适应陷波的低频化方案，并与在较高频直接进行自适应陷波的方案进行性能比较。
3) zero IF scheme
零中频方案
1.
The electrocircuit structure of the zero IF scheme and its advantage are introduced.
讨论数字卫星电视接收机调谐解调器采用零中频方案与采用第二中频方案的区别 ,介绍了零中频方案的电路结构以及采用零中频方案的优越
4) H﹠MF scheme
高中频方案
1.
Usually, the backwardness of the device directly affects the implementation of the advanced scheme,with the appearance of advanced devices, a communication receiver for SSB using one time frequency-covert and H﹠MF scheme is designed according to the needs of users.
当今先进的器件已经出现,根据用户的需求设计了采用一次变频、高中频方案的单边带通信接收机。
6) low frequency medium frequency
低频中频
补充资料：低都儿低
1.低而又低，很低。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条