The elapsed time from pulse creation to pulse reception is called which term?

The elapsed time from pulse creation to pulse reception is called which term?

• A. Pulse duration
• B. Time of flight
• C. Propagation delay
• D. Go-return time

Answer: (B)

Time of flight is the elapsed time between when a pulse is emitted and when it is received. This measures how long the signal takes to travel through the medium, and if the pulse reflects from a target, it includes the round trip back to the receiver. Pulse duration is about how long the pulse lasts itself, not how far it travels. Propagation delay describes the one-way travel time from transmitter to receiver, and go-return time refers to the round-trip interval as well, but time of flight is the standard term for this measurement. If you need distance, you can relate time of flight to distance by using the signal speed and dividing by two for a round trip.

Time of flight is the elapsed time between when a pulse is emitted and when it is received. This measures how long the signal takes to travel through the medium, and if the pulse reflects from a target, it includes the round trip back to the receiver. Pulse duration is about how long the pulse lasts itself, not how far it travels. Propagation delay describes the one-way travel time from transmitter to receiver, and go-return time refers to the round-trip interval as well, but time of flight is the standard term for this measurement. If you need distance, you can relate time of flight to distance by using the signal speed and dividing by two for a round trip.