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Locate Noise floor ...
 
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Locate Noise floor level for a spectral data collected by a micro-controller in Python

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 ranjanpal
(@ranjanpal)
Active Member
Joined: 5 months ago
Posts: 16
Topic starter December 19, 2020 12:31 AM  

I have frequency spectrum which looks as such:

 

Attachment:noise floor.png

 

Below -40dB (as shown in red box), the data can be seen to have noise components.

How do we locate this (-40dB) without plotting the graph in Python?

If somebody could please let me know how do we go about this, I would be very much thankful.

This topic was modified 4 months ago by ranjanpal

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 Hans
(@hans)
Noble Member Admin
Joined: 8 years ago
Posts: 1845
December 19, 2020 4:51 AM  

Hi Ranjan ...

Ehm that quite the questions ... 😜 
I guess it depends on how you get the data (in what format) ?


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