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Hello, guys i have a txt file like attach, how could i read it to detect the types of the noise?

I just figure out some steps as below :

1. read from it

2. transform it by fft by using below code https://rosettacode.org/wiki/Fast_Fourier_transform#C.2B.2B

3. plot to obeserve

please help me! It's good to explain in psudo code or any source code

Hello, guys i have a txt file like attach, how could i read it to detect the types of the noise?

I just figure out some steps as below :

1. read from it

2. transform it by fft by using below code https://rosettacode.org/wiki/Fast_Fourier_transform#C.2B.2B

3. plot to obeserve

please help me! It's good to explain in psudo code or any source code