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After converting the input and output to a dummy variable, the next step of convolution is ________

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in Signals and Systems by (1.2m points)
After converting the input and output to a dummy variable, the next step of convolution is ________

(a) Shifting any one of the signals to left side i.e towards the negative direction

(b) Changing the dummy variables

(c) Shift the impulse response

(d) Shift the input

I got this question in a national level competition.

My enquiry is from Continuous Time Convolution topic in chapter Time-Domain Analysis of CT Systems of Signals and Systems

1 Answer

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by (42.1k points)
Correct choice is (a) Shifting any one of the signals to left side i.e towards the negative direction

To elaborate: The next step of convolution after conversion to dummy variable is shifting any one of the input or response to the negative side. This is done for superimposition purposes.

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