How to do noise analysis of input signal?

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Sneha
Sneha 2014-8-21
评论： Life is Wonderful 2020-3-11
hey, i need to do noise analysis(mainly for flicker noise) of input signal which contains noise. i don't understand analysis means exactly what i need to do? which parameters should be analyse and how?? and also i need to separate the detected or analysed noises. how to proceed??

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回答（2 个）

Iain
Iain 2014-8-21
You should figure out "what flicker noise means" - I would take (temporal) noise to be the RMS variation from the expected value of the signal. But that's not just flicker noise....
Image Analyst
Image Analyst 2014-8-21
For flicker noise, like in a video where some frames are brighter or darker than the prior or subsequent frames, you can take the difference between a frame and the average of its neighboring frames. If the difference is small (a number you decide upon that is "normal") then there is no flicker but if the number is higher or lower then the frame is brighter or darker. You can take a histogram of differences to determine if the flicker is brighter or darker than the "good" frames, assuming the flickered frames are less than 50% of the frames.
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Life is Wonderful
Life is Wonderful 2020-3-11
@Image Analyst
Do you have any feedbeack here ? Or my question is not clear / I am I missing or not clear
Thank you!

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