Let's practice the concept of polyphase implementation of an interpolation filter h[n]. Consideran input signal: [10] CLO 3 x[n] = en+1 0ns1 Pass this x[n] through the block diagram of Fig. 3 (which is an interpolator system). Consider L = 4. Use h[n] from Q1 to compute H(2) and its polyphase components E(2) to E3(2). Sketch all the intermediate outputs (at each stage) and the ultimate output. F(2) yin E (2) 14 x[m] Eg(z) 14 1 Fig. 3: Implementation of interpolation filter after applying the up-sampling identity to the polyphase decomposition.