... heterodyne detection 外差(式)检波 heterodyne filter 外差滤波器 heterodyne frequency meter 外差式频率计 ...
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外差式从动滤波器 heterodyne slave filter
Digital adaptive heterodyne filter adopts the heterodyne-modulation conception, which makes the filter work in low frequency and lessens the complexity of design.
数字自适应外差滤波器运用外差调制的概念，使滤波在低频率处操作，从而降低了滤波器的复杂程度。
参考来源 - 数字自适应外差滤波器技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
数字自适应外差滤波器运用外差调制的概念，使滤波在低频率处操作，从而降低了滤波器的复杂程度。
Digital adaptive heterodyne filter adopts the heterodyne-modulation conception, which makes the filter work in low frequency and lessens the complexity of design.
微带交指带通滤波器具有结构紧凑、易于批量生产的特点，适用于TVRO超外差接收机中作为镜像频率抑制滤波器。
Microstrip interdigital band-pass filters are compact and easy for batch manufacturing. They are suitable for applications in TVRO superheterodyne receivers as image-reject filters.
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