Question: For a real WSS process (X(t)), the following statements are equivalent: 1) (X(t)) is MS periodic. 2) (R(tau) = R(0)). 3) (R(tau mT) = R(tau))
For a real WSS process \(X(t)\), the following statements are equivalent: 1\) \(X(t)\) is MS periodic. 2\) \(R(\tau) = R(0)\). 3\) \(R(\tau mT) = R(\tau)\) for all \(\tau\), all integer \(m\). (i.e., \(R(\tau)\) is periodic with period \(T\).)
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