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。
It proves by practising that this designing method of microstrip pectinate bandpass filter and interlaced digital filter is simple and of good effect.
实验证明，用此方法设计微带线梳状带通滤波器及交指型滤波器，方法简单、效果优良。
These filters are designed by using the concept of wave digital lattice filter and by making use of a novel approximate transformation method for wide band bandpass filters.
这些滤波器应用了波数字格形滤波器概念和宽带带通滤波器的新近似变换方法。
In digital communication, ideal MDPSK signal has the phase jump and larger side beam power in the code switching. It can be sent only after a bandpass filter.
在数字通信中，理想的MDPS K信号在码元切换时会发生相位跳变，旁瓣功率较大，需要经过限带滤波后才能够发射。
In digital communication, ideal MDPSK signal has the phase jump and larger side beam power in the code switching. It can be sent only after a bandpass filter.
在数字通信中，理想的MDPS K信号在码元切换时会发生相位跳变，旁瓣功率较大，需要经过限带滤波后才能够发射。
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