Multiple choice

If R($\tau$) is the autocorrelation function of a real, wide-sense stationary random process, then which of the following is NOT true?

  1. R($\tau$) = R(-$\tau$)
  2. |R($\tau$)| $\le$ R(0)
  3. R($\tau$) = –R(–$\tau$)

  4. The mean square value of the process is R(0)

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Autocorrelation is an even function.

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