PW, used in radar terminology, stands for which of the following?

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Multiple Choice

PW, used in radar terminology, stands for which of the following?

Pulse Width is the duration of a transmitted radar pulse—the time the transmitter is on for that pulse. This duration directly affects range resolution: shorter pulses provide finer separation of targets because the radar can distinguish echoes arriving from nearby ranges. The approximate range resolution is ΔR ≈ c × PW / 2, where c is the speed of light. Pulse Width also determines energy per pulse, since energy per pulse equals peak power times PW; a shorter PW reduces energy per pulse unless peak power is increased, which can affect detection range and receiver needs. Conversely, a longer PW increases energy per pulse but worsens range resolution and can cause overlap with subsequent pulses at a given pulse repetition interval. The other terms listed aren’t used to denote PW in radar terminology.

Pulse Width is the duration of a transmitted radar pulse—the time the transmitter is on for that pulse. This duration directly affects range resolution: shorter pulses provide finer separation of targets because the radar can distinguish echoes arriving from nearby ranges. The approximate range resolution is ΔR ≈ c × PW / 2, where c is the speed of light. Pulse Width also determines energy per pulse, since energy per pulse equals peak power times PW; a shorter PW reduces energy per pulse unless peak power is increased, which can affect detection range and receiver needs. Conversely, a longer PW increases energy per pulse but worsens range resolution and can cause overlap with subsequent pulses at a given pulse repetition interval. The other terms listed aren’t used to denote PW in radar terminology.

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