What is the time reversal convolution

1. What do you mean by time reversal?
2. Why do we reverse convolution?
3. Can you reverse a convolution?
4. Is time reversal and folding same?

What do you mean by time reversal?

time reversal, in physics, mathematical operation of replacing the expression for time with its negative in formulas or equations so that they describe an event in which time runs backward or all the motions are reversed.

Why do we reverse convolution?

But, if the sliding one is reversed, then you'll convolute the present time for both of them correctly. And that's why one function is reversed in convolution.

Can you reverse a convolution?

In mathematics, deconvolution is the operation inverse to convolution. Both operations are used in signal processing and image processing. For example, it may be possible to recover the original signal after a filter (convolution) by using a deconvolution method with a certain degree of accuracy.

Is time reversal and folding same?

Time reversal is also called folding of signal and can be obtained by folding the signal about t=0.