i had some question.i have do some some filtering FFT using a matlab program.but,i need to compared the original signal,noise signal,and filtering signal based on SNR.but i dont understand how to calculate the snr ratio.pls help me or give a suggestion method how to compare and analysis the signal.tq

  • $\begingroup$ Another homework question mate? Voting to close. This would be better suited to the DSP stack. $\endgroup$ – Mark Apr 14 '19 at 12:03
  • $\begingroup$ Hafis - googling using the terms in your question gives me 5 sites that have ways to do this, but I'll migrate to DSP as this is better suited there. $\endgroup$ – Rory Alsop Apr 29 '19 at 16:02

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