3.6.3

3.6.3p xng nht thi v p xng up xng nht thi

p xng nht thip xng u

Xc nh p ng nht thi v p ng u ca h thng c phng trnh sai phn:y(n)=0.5y(n-1)+x(n)Vi x(n) c dng sin: x(n)=10cos(n/4)u(n).

V dGii

GiiTa thy p ng trng thi n nh bn b (persist) vi mi n 0 nu u vo bn b vi mi n 0 Gii