| Tool: | We can calculate the convolution of discrete signals by treating them as trains of impulses and using the tool that an impulse convolved with a waveform replicates that waveform with its origin shifted to the location of the impulse function. |
| Ex: | In this example, we replicated the second stairstep function once for each impulse in the first signal. Then we sum the results. The contributions of the copies of the second waveform to the final answer is indicated by the color coding. |
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