랜덤 진동 용어: Ensemble(앙상블), Ergodic(에르고딕)
Ensemble (앙상블): A set of samples from the same experiments Ergodic (에르고딕): Relating to a process in which sequence or sizable sample of energy is equally representative of the whole Ergodicity of a Random Process - Weakly ergodic: Ensemble and time averages are the same in the estimation of mean and covariance- Strongly ergodic: All the ensemble properties are deducible from the corresponding ti..