 # Which Of The Following Is Recursive System?

## Which of the following is the difference equation of a special case of FIR system?

1.

In general, an FIR system is described by the difference equation y(n)=\sum_{k=0}^{M-1}b_k x(n-k).

Explanation: The difference equation y(n)=\sum_{k=0}^{M-1}b_k x(n-k) describes the FIR system..

## What is the advantage of recursion?

Reduce unnecessary calling of function. Through Recursion one can Solve problems in easy way while its iterative solution is very big and complex.

## What is IIR filter in DSP?

The infinite impulse response (IIR) filter is a recursive filter in that the output from the filter is computed by using the current and previous inputs and previous outputs. Because the filter uses previous values of the output, there is feedback of the output in the filter structure.

## Which one of the following systems is causal *?

Which of the following system is causal? Explanation: An LTI system is said to be causal only when its output at any time depends on the previous or present value of the input. A causal system cannot depend on the future values of the input. 12.

## How does FIR filter work?

Finite impulse response (FIR) filters are the most popular type of filters implemented in software. … Filters are signal conditioners. Each functions by accepting an input signal, blocking prespecified frequency components, and passing the original signal minus those components to the output.

## Which one of the following is an example of bounded signal?

For example, sine and cosine are bounded, but exp(t) and exp(-t) are not bounded: Exp(t) goes to infinity as t goes to infinity, while exp(-t) goes to infinity as t goes to negative infinity. Even signals are symmetric about the origin.

## What is difference between recursive and nonrecursive?

Answer: Recursive function is a function which calls itself again and again. … A recursive function in general has an extremely high time complexity while a non-recursive one does not. A recursive function generally has smaller code size whereas a non-recursive one is larger.

## Why is IIR recursive?

Recursive filters are also called Infinite Impulse Response (IIR) filters, since their impulse responses are composed of decaying exponentials. This distinguishes them from digital filters carried out by convolution, called Finite Impulse Response (FIR) filters.

## Are FIR filter recursive?

In signal processing, non-recursive digital filters are often known as Finite Impulse Response (FIR) filters, as a non-recursive digital filter has a finite number of coefficients in the impulse response h[n].

## What is mean by transfer function?

In engineering, a transfer function (also known as system function or network function) of an electronic or control system component is a mathematical function which theoretically models the device’s output for each possible input.

## What is a recursive system?

Recursive and Nonrecursive Discrete-Time Systems 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 feed back output of the system into the input.

## Why is recursion used?

Recursion is made for solving problems that can be broken down into smaller, repetitive problems. It is especially good for working on things that have many possible branches and are too complex for an iterative approach. One good example of this would be searching through a file system.

## What is recursive algorithm example?

Using recursive algorithm, certain problems can be solved quite easily. Examples of such problems are Towers of Hanoi (TOH), Inorder/Preorder/Postorder Tree Traversals, DFS of Graph, etc.

## What is the kind of relationship between ω and ω?

Explanation: The analog frequencies Ω=±∞ are mapped to digital frequencies ω=±π. The frequency mapping is not aliased; that is, the relationship between Ω and ω is one-to-one.

## Which type of system response to its input represent the zero value of its initial condition?

The zero-state response, which is the output of the system with all initial conditions zero. If H is a linear system, its zero-input response is zero. Homogeneity states if y = F(ax), then y = aF(x). If a = 0 then a zero input requires a zero output.

## What is non recursive system?

A recursive system is a system in which current output depends on previous output(s) and input(s) but in non-recursive system current output does not depend on previous output(s).

## Which of the following is an example of physical device which adds the signals?

Which of the following is an example of physical device which adds the signals? Y (t) = x1 (t) + x2 (t). Explanation: AM radio signal is an example for y (t) = x1 (t) * x2 (t) where, x1 (t) consists of an audio signal plus a dc component and x2 (t) is a sinusoidal signal called carrier wave.

## What is an FIR system?

In signal processing, a finite impulse response (FIR) filter is a filter whose impulse response (or response to any finite length input) is of finite duration, because it settles to zero in finite time. … FIR filters can be discrete-time or continuous-time, and digital or analog.