2. [20 points) A random process u] with autocorrelation Rk] is applied simultaneously to two separate systems, as illustrated below: I k W] Figure 1: System model. .fln The impulse responses of the systems are h1[n] and h2[1'1], and the corresponding outputs are gu] and gghi]. Find the crosscorrelation function R9192 [k] in terms of hn], hg [u]1 and Edit] and convert this relation to the zdomain