A new type electrically tunable bandpass filter was designed, how to control the filter tuning by digital signal was investigated.
设计了一种新型电调谐带通滤波器，研究了数字信号控制滤波器电调谐的技术。
A new type electrically tunable bandpass filter was designed, how to control the filter tuning by digital signal was investigated.
设计了一种新型电调谐带通滤波器，研究了数字信号控制滤波器电调谐的技术。
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