railway RRB JE (CBT I + CBT II) Mock Test 2024 Signals and Systems Discrete Time Signals and Systems
Which of the following statements is/are correct?
1. A system is said to be Finite Impulse Response (FIR), if the output samples of the system depend only on the present input and a finite number of past or previous input samples.
2. If the output of a system y(n) depends only on the present input and past inputs, but not on past outputs, then it is called a non-recursive system.
3. If the output of a system y(n) depends only on the present input and past inputs, but not on past outputs, then it is called a recursive system.1
1 only
2
1 and 2 only
3
1 and 3 only
4
3 only