Properties of system

Question

Specify the properties of system?

Answer 1

a) Stability : A system is termed as stable if the input x(t) satisfies the condition (t)¦≤Mx<∞ and the output satisfies the condition ¦y(t)¦≤My<∞ for all t.

b) Memory : A system is known as memory if output signal depends upon present and past inputs.

c) Invertibility : If input of system can be recovered from system output it is said to be invertible.

d) Time invariance : If time delay or the advance of input signal leads to identical time shift in the output signal it is said to be time invariant.

e) Linearity : A system is termed as linear if it satisfies the super position principle i.e. R(ax1(t)+bx2(t))=ax1(t)+bx2(t).