Temporal average intensity Ita is averaged over which part of the signal?

Temporal average intensity Ita is averaged over which part of the signal?

• A. Only on time
• B. Only off time
• C. Both on and off times
• D. Pulse duration only

Answer: (C)

Temporal average intensity measures energy delivery over the entire time cycle of a pulsed signal. It averages the intensity across both the on period (the pulse itself) and the off period (the silent interval). Since the off period has zero intensity, including it in the average reduces the overall value in proportion to the duty cycle—the fraction of time the pulse is on. For example, if the pulse is on half the time, the temporal average intensity equals the peak intensity during the pulse times 0.5. Therefore, Ita reflects the full cycle, not just the pulse or the off interval alone.

Temporal average intensity measures energy delivery over the entire time cycle of a pulsed signal. It averages the intensity across both the on period (the pulse itself) and the off period (the silent interval). Since the off period has zero intensity, including it in the average reduces the overall value in proportion to the duty cycle—the fraction of time the pulse is on. For example, if the pulse is on half the time, the temporal average intensity equals the peak intensity during the pulse times 0.5. Therefore, Ita reflects the full cycle, not just the pulse or the off interval alone.