Cutoff

How to choose the cut-off frequency for removing the DC components

How to choose the cut-off frequency for removing the DC components
  1. How do you remove DC component of a signal?
  2. What is cutoff frequency in DSP?

How do you remove DC component of a signal?

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ft(1) = 0; % Eliminate DC component so there will be no offset to the signal in the time domain. timeDomainSignal = ifft(ft); % Inverse transform back to time domain. % Compute the mean. It should now be close to zero.

What is cutoff frequency in DSP?

The division between the passband and transition band is called the cutoff frequency. In analog filter design, the cutoff frequency is usually defined to be where the amplitude is reduced to 0.707 (i.e., -3dB).

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