Bissoy.com
Doctors Medicines MCQs Q&A

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.

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. Correct Answer 1 and 2 only

Impulse response defines the characteristics of a system. If the system consists of an infinite number of impulses, then it is called an infinite impulse response system. If the number of impulses is finite, then it is called a finite impulse response system. Hence two major classes of the systems are:

  • If a system is said to be an infinite duration impulse response (IIR) if the output samples of the system depend on the present input sample, past input samples and past output samples.
  • If a system is said to be a finite duration impulse response (FIR) if the output samples of the system depend only on the present input sample and a finite number of past or previous input samples, i.e. the FIR system does not consider past or previous output samples.

 

Recursive discrete time system:

  • If a system output y(n) at time n depends on any number of past output value y(n – 1), y(n – 2), …, it is called a recursive system.
  • This system requires two multiplication, one addition, and one memory location. This is a recursive system which means the output at time n depends on any number of a past output values.
  • So, a recursive system has feedback output of the system into the input. This feed back loop contains a delay element.

 

Non-Recursive discrete time system:

If y(n) depends only on the present and past input, it is called non-recursive. It does not exhibit the necessity of any feedback.

Related Questions

The propositions are
1. Delay and dispatch of FIR (First Information Report) is not the circumstance which can throw out prosecution case in its entirety.
2. Delay and despatch of FIR (First Information Report) is a circumstance which can throw out the prosecution case in its entirety.
3. The extraordinary delay in sending the FIR (First Information Report) is a circumstance which provides a legitimate basis for suspecting that the FIR (First Information Report) was recorded much later than the stated date and hour, affording sufficient time to the prosecution to introduce improvement,
Which of the following is correct in respect of the aforesaid preposition?
The propositions are:
1. Delay in despatch of the First information Report (FIR) is not a circumstance which can throw out the prosecution case in its entirety.
2. Delay in despatch of the First information Report (FIR) is a circumstance which can throw out the prosecution case in its entirety.
3. The extra-ordinary delay in sending the First information Report (FIR) is a circumstance which provides a legitimate basis for suspecting that the First information Report (FIR) was recorded much later than the stated date and hour, affording sufficient time to the prosecution to introduce improvements.
Which of the following is correct in respect of the aforesaid proposition
When a discrete time LTI system is said to be causal? must not depend on x for k>n b) Output y must not depend on x for k=n c) Output y must not depend on x for kn
Consider the following statements regarding the First Information Report. 1. It is compulsory to register an FIR when a victim gives information about a cognizable offence. 2. FIR can be registered without oral testimony of the complainant. 3. The complainant has only a legal right to get a free copy of the FIR from the police. Which of the following statements given above is/are correct?
In MATLAB, the impulse response of the step response of a system is ___ to the step response of the impulse response of the system.
Which of the following statements about the matched filter in a communication receiver are correct ? (A) It may produce phase error if synchronization is improper (B) Its impulse response depends on the singal shape (C) The characteristics of the matched filter is matched with the transmitted data (D) It produces inter symbol interference (E) It measures the correlation between incoming received message and its impulse response Choose the correct answer from the options given below : 
Below are given two sets, Set - I which gives modalities of operant conditioning and Set - II which provides the types of reinforcement, the types of responses (responses made or withheld) and the presence or absence of cue. Match the two sets and indicate your answer by choosing from the code : Set - I (Modalities of operant conditioning procedures) Set – II           (Conditions and contexts) (a) Reward training (i) Positive reinforcement, response made, with cue present (b) Escape training (ii) Positive reinforcement, response withheld with cue absent (c) Discriminated omission training   (iii) Positive reinforcement, response made with cue absent (d) Active avoidance   (iv) Negative reinforcement, response made with training (e) Punishment training (v) Positive reinforcement, response withheld with cue present   (vi) Negative reinforcement, response withheld with cue absent  
Any recursive view must be defined as the union of two subqueries: a _______ query that is nonrecursive and a __________ query.
The logic circuits whose outputs at any instant of time depends only on the present input but also on the past outputs are called ________________
You wish to lodge an FIR for a crime but the police are reluctant to file the FIR. In this case, how can you file the FIR?