MAProcess
MAProcess[{b1, ..., bq}, v] represents a moving-average process of order q with normal white noise variance v.
MAProcess[{b1, ..., bq}, Σ]represents a vector MA process with multinormal white noise covariance matrix Σ.MAProcess[{b1, ..., bq}, v, init]represents an MA process with initial data init.MAProcess[c, ...]represents an MA process with a constant c.
Examples
RandomFunction[MAProcess[{0.5, 0.3}, 1], {0, 100}]Please visit the official Wolfram Language Reference for more details.