Which term describes the ability of RADAR to separate two targets close in range at the same azimuth?

The term that accurately describes the ability of RADAR to separate two targets that are close in range but at the same azimuth is range resolution. This capability is crucial for distinguishing between multiple targets that may appear closely spaced in distance.

Range resolution refers specifically to the RADAR's ability to differentiate targets based on the time it takes for a signal to travel to each target and back. By employing techniques such as pulse compression and using specific signal processing, a RADAR system can achieve high range resolution, allowing it to distinguish between two targets even when they are very close together in terms of distance.

In contrast, azimuth resolution pertains to the ability to differentiate targets based on their angle or direction. While important, it specifically addresses separation in the horizontal plane rather than the vertical or range dimension.

Understanding this distinction emphasizes the importance of both range and azimuth resolution in RADAR performance, but in the context of separating two targets that are nearly aligned in azimuth, range resolution is the relevant concept.