In: Electrical Engineering
A discrete system is described by the difference equation y(n)= 2.5y(n-1)-y(n-2)+3x(n)+3x(n-2)
a. Using Z-transform, Determine all possible impulse responses h(n) and indicate the casuality and stability properties.
b.For the casual filter, determine the output y(n) if the input is x(n)=g(n)-2g(n-1) where g(n)=cos (pin/s)u(n).