Signal

Effect of down-sampling to PSD from auto-correlation?

Effect of down-sampling to PSD from auto-correlation?
  1. What is autocorrelation in signal processing?

What is autocorrelation in signal processing?

Autocorrelation, sometimes known as serial correlation in the discrete time case, is the correlation of a signal with a delayed copy of itself as a function of delay. Informally, it is the similarity between observations of a random variable as a function of the time lag between them.

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