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Define the convolution sum and determine the non-zero ranges for the signals involved in the convolution of x[n] and h[n].

Computer Science

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  1. Define the convolution sum.

    The convolution of two discrete-time signals x[n]x[n] and h[n]h[n] is given by the sum:

    y[n]=∑k=−∞∞x[k]h[n−k]y[n] = \sum_{k=-\infty}^{\infty} x[k] h[n-k]
  2. Determine the non-zero ranges for x[k]x[k] and h[n−k]h[n-k].

    The signal x[n]x[n] is defined as:

    x[n]={1,3≤n≤80,otherwisex[n] = \begin{cases} 1, & 3 \le n \le 8 \\ 0, & \text{otherwise} \end{cases}

    So, x[k]x[k] is non-zero for 3≤k≤83 \le k \le 8.

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