Consider the following system where H1 z b10 b11z1 b12z21
     Consider the following system where H_1 (z) = b_10 + b_11z^-1 + b_12z^-2/1 + a_11z^-1 + a_12z^-2 and h_2 = b_20 + b_21z^-1 + b_22z^-2/1 + a_21z^-1 + a_22z^-2 Draw the system structure by cascade connection of two direct from ii structures. Define state variables on the structure. Write down the pseudo-code to determine the output y(n).  
  
  Solution
In general cascade form the o/p of one system is given as i/p to another system

