## Signals and Systems - Convolution

1. The problem statement, all variables and given/known data

2. Relevant equations
Convolution

y[n] = x[n] * h[n]

3. The attempt at a solution

I've never done convolutions going backwards..

right off the bat, I know I'll noly have 2 terms in the convolution sum, because of x term, but I don't have a clue how to determine the h[n]. It is not possible to write a response y as a convolution between x and h because h is unknown.

Any ideas?
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 You know what signal x(n) is right? -- hint: what is the value of the digital delta function You know how long h(n) is right? -- hint: Length of Conv = Length of x + length h -1 Put in place holders for the values of h and grind it out just like you were doing the convolution. It is the same idea as 2+x = 3 except that you have to add several values. Use two strips of paper if that helps. Don't forget to flip the final result.

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