What is the rate at which the pulses are transmitted called?

The rate at which pulses are transmitted in radar systems is known as Pulse Repetition Frequency (PRF). This term specifically defines how many pulses are emitted per second and is a critical characteristic that impacts the radar's ability to detect targets and measure their range. A higher PRF allows for more frequent updates on the target's position and velocity, enhancing radar resolution and performance.

Understanding PRF is essential in radar operations, as it can influence other parameters, such as the maximum unambiguous range of the radar system. In this context, Pulse Duration refers to the length of time a single pulse is transmitted, Pulse Width describes the width of the pulse in terms of time, and Transmission Rate is a more general term that does not specifically indicate the repetition frequency in the context of radar applications. Thus, PRF is the correct term for the rate at which the pulses are sent out during radar operation.