noise reduction by using filter

2017 12 11
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更新时间：2017 12 11
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I have added a signal of 4000Hz and a noise of 50Hz .I want to reduce noise by using a filter.Can anyone suggest what type of filter and what freq. should I use.

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回答（1 个）

Star Strider
Star Strider 2017-12-11

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See Remove the 60 Hz Hum from a Signal (link).
Change the notch frequency and other parameters to fit your signal.

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