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What is convolution?

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βˆ™ 2008-09-13 09:23:28

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In mathematics and, in particular, functional analysis, convolution is a mathematical operator which takes two functions f and g and produces a third function that in a sense represents the amount of overlap between f and a reversed and translated version of g. A convolution is a kind of very general moving average, as one can see by taking one of the functions to be an indicator function of an interval. we mainly use impulse functions to convolute in dicreate cases

2008-09-13 09:23:28
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Related Questions

Applications of Circular convolution?

for finding convolution of periodic signals we use circular convolution

Comparison linear convolution and circular convolution?

circular convolution is used for periodic and finite signals while linear convolution is used for aperiodic and infinite signals. In linear convolution we convolved one signal with another signal where as in circular convolution the same convolution is done but in circular pattern ,depending upon the samples of the signal

What is the difference between linear convolution and circular convolution?

circular convolution is used for periodic and finite signals while linear convolution is used for aperiodic and infinite signals.

Can you perform a linear convolution from circular convolution?

yes we can perform linear convolution from circular convolution, but the thing is zero pading must be done upto N1+N2-1 inputs.

Diff between linear and circular convolution?

there is a big difference between circular and linear convolution , in linear convolution we convolved one signal with another signal where as in circular convolution the same convolution is done but in circular patteren ,depending upon the samples of the signal

How do you put the word convolution in a sentence?

This is how I use convolution in a sentence. :D

State and prove convolution theorem for fourier transform?

Convolution TheoremsThe convolution theorem states that convolution in time domain corresponds to multiplication in frequency domain and vice versa:Proof of (a):Proof of (b):

What is frequency domain counterpart of convolution?

Convolution in the time domain is equivalent to multiplication in the frequency domain.

Why you do convolution instead of multiplication?

Convolution is particularly useful in signal analysis. See related link.

What are the release dates for Convolution - 2012?

Convolution - 2012 was released on: USA: 24 August 2012

What is the difference between continuous and discrete convolution?

A convolution is a function defined on two functions f(.) and g(.). If the domains of these functions are continuous so that the convolution can be defined using an integral then the convolution is said to be continuous. If, on the other hand, the domaisn of the functions are discrete then the convolution would be defined as a sum and would be said to be discrete. For more information please see the wikipedia article about convolutions.

What is convolution of a signal?

the convolution of a signal is to filter the components of the signal. The convolution does not mean the masking. Masking means it is going to remove all the masked components(both high and low frequency components).But convolution is going to remove any one (either low r high frequency) depending upon the filter response.

What is a sentence using convolution?


Code for circular convolution matlab?

Please check the help files of the matlab circular convolution . Matlab already has a readymade function for it.

What is depression between the convolution of the cerebrum?

The answer is sulcus.

What is the convulusion integral?

Do you mean the Convolution Integral?

What are the Differences between Convolution and correlation?

A convolution is an integral that expresses the amount of overlap of one function as it is shifted over another function.You can use correlation to compare the similarity of two sets of data. Correlation computes a measure of similarity of two input signals as they are shifted by one another. The correlation result reaches a maximum at the time when the two signals match bestThe difference between convolution and correlation is that convolution is a filtering operation and correlation is a measure of relatedness of two signalsYou can use convolution to compute the response of a linear system to an input signal. Convolution is also the time-domain equivalent of filtering in the frequency domain.

How do you use the word convolution in a sentence?

She never finished reading the novel because of the plot's endless convolutions. The convolution of the brain increases its effective surface area.

Difference between linear and circular convolution?

Linear convolution takes two functions of an independent variable, which correlates one function with the time-reversed version of the other function. Circular convolution, on the other hand, is used for finite length functions which are continuous or discrete in time.

What can humans do thanks to the Broca's convolution of the brain?


Scientific name of cerebellum?

the scientific of cerebellum-cerebralyzation,convolution

Convolution in matlab using for loop?

There are a lot of convolution functions in matlab, mostly in the signal processing toolbox, so it depends on what you want to do. Matlab has extensive help files available online.

What is convolution and why is it needed?

Convolution is a mathematical function derived from two given functions by integration that expresses how the shape of one is modified by the other. Convolution is used in GPS receivers to simultaneously identify the satellite transmitting a signal and measure the time delay from transmission by that satellite so that the distance between the satellite and the receiver can be determined. Modern GPS receivers have 12 independent convolution channels so that all 12 satellites above the horizon can be tracked.

What do you mean by periodic convolution?

The circular convolution of two aperiodic functions occurs when one of them is convolved in the normal way with a periodic summation of the other function. That situation arises in the context of the Circular convolution theorem. The identical operation can also be expressed in terms of the periodic summations of both functions, if the infinite integration interval is reduced to just one period. That situation arises in the context of the Discrete-time Fourier transform (DTFT) and is also called periodic convolution. In particular, the transform (DTFT) of the product of two discrete sequences is the periodic convolution of the transforms of the individual sequences.

What actors and actresses appeared in Convolution - 2012?

The cast of Convolution - 2012 includes: Jonathan Dabbs as Alfred Pinturn Ryan Ohare as Mr. Neff Wesley Parnell as Jeff Walters