Averaging the intensity during the entire PRP (both transmit and receive times).

Averaging the intensity during the entire PRP (both transmit and receive times).

• A. Isptp
• B. Temporal average intensity or Ita
• C. Pulse average intensity or Ipa
• D. Isppa

Answer: (B)

Averaging the intensity over the entire PRP corresponds to the temporal-average intensity. This metric takes the instantaneous intensity at every moment in the pulse repetition period and averages it across the whole cycle, including both the transmit (pulse) time and the receive (silent) time. That’s why it’s described as averaging over the full PRP. Pulse-average intensity, by contrast, would only average during the short transmission of the pulse, giving a higher value because it ignores the quiet interval. If you needed the average at the location of maximum intensity across space, you’d talk about the spatial-peak temporal-average intensity, Ispta, but the question specifies averaging across the entire PRP, which defines Ita. Temporal-peak intensity would consider just the peak moment, not an average over time. Pulse-average intensity is the average over the pulse duration alone.

Averaging the intensity over the entire PRP corresponds to the temporal-average intensity. This metric takes the instantaneous intensity at every moment in the pulse repetition period and averages it across the whole cycle, including both the transmit (pulse) time and the receive (silent) time. That’s why it’s described as averaging over the full PRP.

Pulse-average intensity, by contrast, would only average during the short transmission of the pulse, giving a higher value because it ignores the quiet interval. If you needed the average at the location of maximum intensity across space, you’d talk about the spatial-peak temporal-average intensity, Ispta, but the question specifies averaging across the entire PRP, which defines Ita. Temporal-peak intensity would consider just the peak moment, not an average over time. Pulse-average intensity is the average over the pulse duration alone.