Problem

For the system described by the MATLAB program of Problem,(a) Find the system difference e...

For the system described by the MATLAB program of Problem,

(a) Find the system difference equation.


(b) Find the particular solution for the difference equation, with the excitation x[n] = a[n].


(c) Find the system transfer function.


(d) Use the transfer function to verify the results of Part (b).


(e) Change the MATLAB program such that x[n] = a[n].


(f) Verify the solution in Parts (b) and (d) by running the program. Recall that only the steady-state response has been calculated.

Consider the MATLAB program for the simulation of an LTI system:

y(1) = 0;for n =1:6; x(n)=0.8^(n-1); endfor n = 2:6y(n)=0.7*y(n-1)+3*x(n)-2.2*x(n-1);endy

(a) Write the system difference equation.


(b) Draw the form I representation for the system.


(c) Draw the form II representation for the system.


(d) Express the input signal x[n] as a function of n.


(e) Solve for y[n] as a function of n.


(f) Verify the solution in part (e) by running the MATLAB program.

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Solutions For Problems in Chapter 10