The pulse width of RADAR affects which of the following?

The pulse width of radar is a critical parameter that influences several aspects of its performance, primarily affecting minimum range, range resolution, and transmitted power.

Focusing on minimum range, a shorter pulse width allows a radar system to detect targets at closer distances. This is because the radar can transmit and receive pulses more frequently, which reduces the time required to distinguish between successive returns. Therefore, a short pulse width effectively minimizes the radar's dead time, where it cannot detect any targets.

When it comes to range resolution, pulse width plays a significant role; narrower pulses result in better range resolution. This is because range resolution is defined by the ability to distinguish between two closely spaced targets. A shorter pulse width reduces the overlap in returns from multiple echoes, thus allowing for more accurate separation of targets.

Regarding transmitted power, while the relationship is somewhat more indirect, changing the pulse width can necessitate adjustments in transmitted power settings. For instance, a longer pulse width generally requires more energy to maintain adequate signal strength and ensure the return signal is strong enough for processing, especially over longer distances.

In summary, the pulse width of radar impacts all the stated parameters—minimum range, range resolution, and transmitted power—making the correct option encompass all these aspects holistically.