1.

What is a convolution sum?

A. ∑x[k]h[n-k], k from -∞ to +∞
B. ∑x[k]*∑h[n-k], k from -∞ to +∞
C. ∑x[k]+∑h[n-k], k from -∞ to +∞
D. ∑∑x[k]h[n-k], k from -∞ to +∞
Answer» B. ∑x[k]*∑h[n-k], k from -∞ to +∞


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