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单词 notch filter
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notch filter
notch filter n. Electronics a filter that attenuates signals within a very narrow band of frequencies.
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the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > [noun] > filter > type of
band-pass filter1922
slope filter1937
comb filter1941
state variable1942
noise filter1960
notch filter1962
1950 Electronics July 75/3 (heading) Notching filters.]
1962 Electronic Technol. 39 332/1 At v.h.f. it is desirable to construct notch filters from coaxial elements.
1988 V. Capel Audio & Hi-Fi Engineer's Pocket Bk. 120 The inclusion of a 19kHz pilot-tone notch filter may slightly reduce the upper response.
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