Nonlinear discrete-Time System Output y[n] due to an input axn]+ Bx2n is given b yn]=a xn+B xn ax1[n-1+Bx2[n-1}{x1[m+1]+Bx2[n+1]} =a2{x[n]-x1[n-1]x[n+1 +B2{x2[]-x2[n-1]x2[n+1} +aB12x1[mx2[m]-x1[n-1x2[n+1]-x1[n+12n-1]} Copyright C 2001, S K. MitraCopyright © 2001, S. K. Mitra 13 Nonlinear Discrete-Time System • Output y[n] due to an input is given by x [n] x [n]  1 +  2 2 1 2 y n x n x n [ ] { [ ] [ ]} = +   { [ 1] [ 1]}{ [ 1] [ 1]} −  x1 n − +  x2 n −  x1 n + +  x2 n + { [ ] [ 1] [ 1]} 1 1 2 1 2 = x n − x n − x n + { [ ] [ 1] [ 1]} 2 2 2 2 2 +  x n − x n − x n + {2 [ ] [ ] [ 1] [ 1] [ 1] [ 1]} + x1 n x2 n − x1 n − x2 n + − x1 n + x2 n −