| Objective: |
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To describe one method of representing periodic signals. |
| Steps: |
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For a square wave we could start by looking at one cycle - this
example repeats every 8s.
Between 0 and 4s the value is 1, whilst between 4s and 8s the
value is -1. |
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The waveform repeats every 8s and this can be written as:
A(t) = A(t+8n), where n is any integer. |
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For the triangular waveform, it is easier to start with one
cycle beginning at t=0. We can then advance the signal by starting
it at t=-1. The waveform repeats every 3s and so A(t) = A(t+3n). |
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